[Appendix]
[Detailed Budget Estimates by Agency]
[National Aeronautics and Space Administration]
[From the U.S. Government Publishing Office, www.gpo.gov]



   
      
      
         NATIONAL AERONAUTICS AND SPACE ADMINISTRATION                                                                            
            
         
      
      
   
   
      NATIONAL AERONAUTICS AND SPACE ADMINISTRATION                                                                            
         
      
      Federal Funds
         ScienceFor necessary expenses, not otherwise provided for, in the conduct and support of science research and development activities,
            including research, development, operations, support, and services; maintenance and repair, facility planning and design;
            space flight, spacecraft control, and communications activities; program management; personnel and related costs, including
            uniforms or allowances therefor, as authorized by sections 5901 and 5902 of title 5, United States Code; travel expenses;
            purchase and hire of passenger motor vehicles; and purchase, lease, charter, maintenance, and operation of mission and administrative
            aircraft, $5,865,000,000, to remain available until September 30, 2020.
      Note.âA full-year 2018 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Continuing Appropriations Act, 2018 (Division D of P.L. 115â56, as amended).
         The amounts included for 2018 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0120â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Science
                  5,799
                  5,726
                  5,865
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  301
                  298
                  361
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  34
                  63
                  60
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  335
                  361
                  421
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  5,765
                  5,726
                  5,865
               
               
                  1120
                  Appropriations transferred to other accts CECR [080â0130]
                  â3
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  5,762
                  5,726
                  5,865
               
               
                  1930
                  Total budgetary resources available
                  6,097
                  6,087
                  6,286
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  298
                  361
                  421
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  3,622
                  3,858
                  3,787
               
               
                  3010
                  New obligations, unexpired accounts
                  5,799
                  5,726
                  5,865
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  7
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â5,523
                  â5,734
                  â6,155
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â34
                  â63
                  â60
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â13
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  3,858
                  3,787
                  3,437
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  3,622
                  3,858
                  3,787
               
               
                  3200
                  Obligated balance, end of year
                  3,858
                  3,787
                  3,437
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  5,762
                  5,726
                  5,865
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  2,245
                  2,407
                  2,465
               
               
                  4011
                  Outlays from discretionary balances
                  3,278
                  3,327
                  3,690
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  5,523
                  5,734
                  6,155
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â2
                  
                  
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4052
                  Offsetting collections credited to expired accounts
                  2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4060
                  Additional offsets against budget authority only (total)
                  2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  5,762
                  5,726
                  5,865
               
               
                  4080
                  Outlays, net (discretionary)
                  5,521
                  5,734
                  6,155
               
               
                  4180
                  Budget authority, net (total)
                  5,762
                  5,726
                  5,865
               
               
                  4190
                  Outlays, net (total)
                  5,521
                  5,734
                  6,155
               
               
                  
                     
                  
               
            
         
      
      
         The Science appropriation provides for NASA's science mission, which is comprised of the agency's Earth and space science
            programs: Earth Science, Planetary Science, Heliophysics, and Astrophysics. These programs, which are managed by the Science
            Mission Directorate, seek to answer fundamental questions concerning the global Earth system; other planets in the solar system
            and around other stars; the connections among the Sun, Earth, and heliosphere; and the origin and evolution of planetary systems,
            the galaxy, and the universe, including the origin and distribution of life in the universe. Program objectives are pursued
            through robotic flight missions, ground-based scientific research and data analysis, and the development of new technologies
            for future missions. Additionally, the Budget funds within Science a new lunar robotic exploration program that will support
            innovative approaches to achieving human and science exploration goals. 
         
         The Science appropriation provides for all of the research, development, operations, salaries and related expenses, and other
            general and administrative activities required to execute the programs within this account. Costs include labor, travel, procurement,
            and test and fabrication costs. Performance goals associated with these activities are addressed in NASA's detailed budget
            request.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0120â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  238
                  260
                  249
               
               
                  11.3
                  Other than full-time permanent
                  3
                  3
                  3
               
               
                  11.5
                  Other personnel compensation
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  242
                  264
                  253
               
               
                  12.1
                  Civilian personnel benefits
                  76
                  76
                  79
               
               
                  21.0
                  Travel and transportation of persons
                  23
                  24
                  24
               
               
                  22.0
                  Transportation of things
                  4
                  5
                  5
               
               
                  23.2
                  Rental payments to others
                  9
                  8
                  8
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  4
                  4
                  4
               
               
                  24.0
                  Printing and reproduction
                  1
                  1
                  1
               
               
                  25.1
                  Advisory and assistance services
                  90
                  77
                  80
               
               
                  25.2
                  Other services from non-Federal sources
                  217
                  91
                  93
               
               
                  25.3
                  Other goods and services from Federal sources
                  218
                  239
                  246
               
               
                  25.4
                  Operation and maintenance of facilities
                  21
                  9
                  9
               
               
                  25.5
                  Research and development contracts
                  4,047
                  4,055
                  4,166
               
               
                  25.7
                  Operation and maintenance of equipment
                  104
                  102
                  105
               
               
                  26.0
                  Supplies and materials
                  31
                  26
                  27
               
               
                  31.0
                  Equipment
                  31
                  32
                  33
               
               
                  32.0
                  Land and structures
                  1
                  1
                  1
               
               
                  41.0
                  Grants, subsidies, and contributions
                  680
                  712
                  731
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  5,799
                  5,726
                  5,865
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0120â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  1,888
                  1,875
                  1,876
               
               
                  
                     
                  
               
            
         
      
         AeronauticsFor necessary expenses, not otherwise provided for, in the conduct and support of aeronautics research and development activities,
            including research, development, operations, support, and services; maintenance and repair, facility planning and design;
            space flight, spacecraft control, and communications activities; program management; personnel and related costs, including
            uniforms or allowances therefor, as authorized by sections 5901 and 5902 of title 5, United States Code; travel expenses;
            purchase and hire of passenger motor vehicles; and purchase, lease, charter, maintenance, and operation of mission and administrative
            aircraft, $608,900,000, to remain available until September 30, 2020.
      Note.âA full-year 2018 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Continuing Appropriations Act, 2018 (Division D of P.L. 115â56, as amended).
         The amounts included for 2018 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0126â0â1â402
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Aeronautics
                  660
                  656
                  609
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  11
                  12
                  12
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  5
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  16
                  12
                  12
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  660
                  656
                  609
               
               
                  1120
                  Appropriations transferred to other acct CECR [080â0130]
                  â4
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  656
                  656
                  609
               
               
                  1930
                  Total budgetary resources available
                  672
                  668
                  621
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  12
                  12
                  12
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  344
                  369
                  389
               
               
                  3010
                  New obligations, unexpired accounts
                  660
                  656
                  609
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  1
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â629
                  â636
                  â609
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â5
                  
                  
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  369
                  389
                  389
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  344
                  369
                  389
               
               
                  3200
                  Obligated balance, end of year
                  369
                  389
                  389
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  656
                  656
                  609
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  340
                  321
                  298
               
               
                  4011
                  Outlays from discretionary balances
                  289
                  315
                  311
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  629
                  636
                  609
               
               
                  4180
                  Budget authority, net (total)
                  656
                  656
                  609
               
               
                  4190
                  Outlays, net (total)
                  629
                  636
                  609
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for the full costs associated with NASA's Aeronautics Research mission, which aims to expand the
            boundaries of aeronautical knowledge for the benefit of the nation and the broad aeronautics community. The mission is managed
            by NASA's Aeronautics Research Mission Directorate, and consists of the following integrated research programs: Airspace Operations
            and Safety, Advanced Air Vehicles, Integrated Aviation Systems, and Transformative Aeronautics Concepts. Full costs of these
            programs cover all of the research; development; operations; salaries and related expenses; and other general and administrative
            activities required to execute the programs. Costs include labor, travel, procurement, test, and fabrication costs. Performance
            goals associated with these activities are addressed in NASA's detailed budget request.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0126â0â1â402
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  159
                  117
                  109
               
               
                  11.3
                  Other than full-time permanent
                  3
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  162
                  119
                  111
               
               
                  12.1
                  Civilian personnel benefits
                  50
                  37
                  34
               
               
                  21.0
                  Travel and transportation of persons
                  6
                  5
                  5
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  7
                  7
                  6
               
               
                  25.1
                  Advisory and assistance services
                  11
                  21
                  20
               
               
                  25.2
                  Other services from non-Federal sources
                  48
                  41
                  39
               
               
                  25.3
                  Other goods and services from Federal sources
                  5
                  5
                  5
               
               
                  25.4
                  Operation and maintenance of facilities
                  26
                  23
                  21
               
               
                  25.5
                  Research and development contracts
                  230
                  274
                  254
               
               
                  25.7
                  Operation and maintenance of equipment
                  37
                  34
                  31
               
               
                  26.0
                  Supplies and materials
                  23
                  22
                  20
               
               
                  31.0
                  Equipment
                  30
                  31
                  29
               
               
                  32.0
                  Land and structures
                  1
                  2
                  2
               
               
                  41.0
                  Grants, subsidies, and contributions
                  24
                  35
                  32
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  660
                  656
                  609
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0126â0â1â402
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  1,375
                  1,356
                  1,330
               
               
                  
                     
                  
               
            
         
      
          Exploration Research and Technology
         For necessary expenses, not otherwise provided for, in the conduct and support of space technology research and development
            activities, including research, development, operations, support, and services; maintenance and repair, facility planning
            and design; space flight, spacecraft control, and communications activities; program management; personnel and related costs,
            including uniforms or allowances therefor, as authorized by sections 5901 and 5902 of title 5, United States Code; travel
            expenses; purchase and hire of passenger motor vehicles; and purchase, lease, charter, maintenance, and operation of mission
            and administrative aircraft, $912,700,000, to remain available until September 30, 2020.
      Note.âA full-year 2018 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Continuing Appropriations Act, 2018 (Division D of P.L. 115â56, as amended).
         The amounts included for 2018 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0131â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Space Technology
                  719
                  682
                  913
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  71
                  42
                  42
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  3
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  74
                  42
                  42
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  687
                  682
                  913
               
               
                  1930
                  Total budgetary resources available
                  761
                  724
                  955
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  42
                  42
                  42
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  485
                  500
                  518
               
               
                  3010
                  New obligations, unexpired accounts
                  719
                  682
                  913
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  1
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â699
                  â664
                  â764
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â3
                  
                  
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â3
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  500
                  518
                  667
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  485
                  500
                  518
               
               
                  3200
                  Obligated balance, end of year
                  500
                  518
                  667
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  687
                  682
                  913
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  281
                  239
                  320
               
               
                  4011
                  Outlays from discretionary balances
                  418
                  425
                  444
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  699
                  664
                  764
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â1
                  
                  
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4052
                  Offsetting collections credited to expired accounts
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  687
                  682
                  913
               
               
                  4080
                  Outlays, net (discretionary)
                  698
                  664
                  764
               
               
                  4180
                  Budget authority, net (total)
                  687
                  682
                  913
               
               
                  4190
                  Outlays, net (total)
                  698
                  664
                  764
               
               
                  
                     
                  
               
            
         
      
      
         The FY 2019 President's Budget includes a new account structure for human space exploration and technology programs to improve
            alignment of funding with NASA's new strategic space exploration objectives. It renames the Space Operations, Exploration,
            and Space Technology accounts as LEO and Spaceflight Operations, Deep Space Exploration Systems, and Exploration Research
            and Technology, and realigns some program funding. As part of this realignment, NASA also plans to restructure the Human Exploration
            and Operations Mission Directorate and Space Technology Mission Directorate.
         
         This appropriation provides for the costs associated with the research and technology development needed for space exploration.
            The full costs provide for all of the research, development, operations, salaries and related expenses, and other general
            and administrative activities required to execute the programs within this account. Costs include labor, travel, procurement,
            and those associated with fabrication, tests and flight demonstrations.
         
         The programs within Exploration Research and Technology enable new missions by drawing on talent from the NASA workforce,
            academia, small businesses and the broader space enterprise to deliver innovative solutions that dramatically improve technological
            capabilities for NASA and the Nation, in addition to developing technologies and countermeasures to keep astronauts healthy
            and functional during deep space. The Exploration Research and Technology appropriation funds several programs: Small Business
            Innovative Research (SBIR), Small Business Technology Transfer (STTR), Early Stage Innovation & Partnerships, Technology Maturation,
            Technology Demonstrations, and Human Research Program (HRP). The Human Research Program and some technology efforts were previously
            included in the Exploration account, which is now Deep Space Exploration Systems. Performance goals associated with these
            activities are addressed in NASA's detailed budget request.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0131â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  86
                  82
                  94
               
               
                  11.3
                  Other than full-time permanent
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  87
                  83
                  95
               
               
                  12.1
                  Civilian personnel benefits
                  27
                  27
                  31
               
               
                  21.0
                  Travel and transportation of persons
                  5
                  4
                  10
               
               
                  22.0
                  Transportation of things
                  3
                  2
                  2
               
               
                  25.1
                  Advisory and assistance services
                  27
                  25
                  31
               
               
                  25.2
                  Other services from non-Federal sources
                  37
                  41
                  44
               
               
                  25.3
                  Other goods and services from Federal sources
                  7
                  6
                  10
               
               
                  25.4
                  Operation and maintenance of facilities
                  3
                  4
                  5
               
               
                  25.5
                  Research and development contracts
                  436
                  411
                  560
               
               
                  25.7
                  Operation and maintenance of equipment
                  20
                  18
                  30
               
               
                  26.0
                  Supplies and materials
                  8
                  6
                  9
               
               
                  31.0
                  Equipment
                  16
                  15
                  16
               
               
                  41.0
                  Grants, subsidies, and contributions
                  43
                  40
                  70
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  719
                  682
                  913
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0131â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  733
                  680
                  922
               
               
                  
                     
                  
               
            
         
      
         Deep Space exploration SystemsFor necessary expenses, not otherwise provided for, in the conduct and support of exploration research and development activities,
            including research, development, operations, support, and services; maintenance and repair, facility planning and design;
            space flight, spacecraft control, and communications activities; program management; personnel and related costs, including
            uniforms or allowances therefor, as authorized by sections 5901 and 5902 of title 5, United States Code; travel expenses;
            purchase and hire of passenger motor vehicles; and purchase, lease, charter, maintenance, and operation of mission and administrative
            aircraft, $4,558,800,000, to remain available until September 30, 2020.
      Note.âA full-year 2018 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Continuing Appropriations Act, 2018 (Division D of P.L. 115â56, as amended).
         The amounts included for 2018 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0124â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Exploration
                  4,317
                  4,295
                  4,559
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  43
                  81
                  187
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  31
                  106
                  106
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  74
                  187
                  293
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  4,324
                  4,295
                  4,559
               
               
                  1930
                  Total budgetary resources available
                  4,398
                  4,482
                  4,852
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  81
                  187
                  293
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1,270
                  1,402
                  1,329
               
               
                  3010
                  New obligations, unexpired accounts
                  4,317
                  4,295
                  4,559
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  2
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â4,152
                  â4,262
                  â4,528
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â31
                  â106
                  â106
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â4
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  1,402
                  1,329
                  1,254
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1,270
                  1,402
                  1,329
               
               
                  3200
                  Obligated balance, end of year
                  1,402
                  1,329
                  1,254
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  4,324
                  4,295
                  4,559
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  2,886
                  2,878
                  3,055
               
               
                  4011
                  Outlays from discretionary balances
                  1,266
                  1,384
                  1,473
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  4,152
                  4,262
                  4,528
               
               
                  4180
                  Budget authority, net (total)
                  4,324
                  4,295
                  4,559
               
               
                  4190
                  Outlays, net (total)
                  4,152
                  4,262
                  4,528
               
               
                  
                     
                  
               
            
         
      
      
         The FY 2019 President's Budget includes a new account structure for human space exploration and technology program to improve
            alignment of funding with NASA's new strategic space exploration objectives. It renames the Space Operations, Exploration,
            and Space Technology accounts as LEO and Spaceflight Operations, Deep Space Exploration Systems, and Exploration Research
            and Technology, and realigns some program funding. As part of this realignment, NASA also plans to restructure the Human Exploration
            and Operations Mission Directorate and Space Technology Mission Directorate.
         
         This appropriation provides for costs associated with the development of systems and capabilities required for human exploration
            of space. The capabilities include launch and crew vehicles for missions beyond low Earth orbit; providing integrated systems
            to keep astronauts safe, healthy, and functional during deep space missions; and advancing the tools to increase exploration
            capabilities and reduce the launch mass and cost of deep space missions. The full costs provide for the research, development,
            operations, salaries and related expenses, and other general and administrative activities required to execute the programs
            within this account. Costs include labor, travel, procurement, test, and fabrication costs. Performance goals associated with
            these activities are addressed in NASA's detailed budget request.
         
         NASA's human space exploration programs include the Space Launch System, Orion, Exploration Ground Systems under the Exploration
            Systems Development theme, as well as cislunar and lunar surface programs. The Human Research Program and some technology
            programs that were previously included in the Exploration account are now reflected in the Exploration Research and Technology
            account.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0124â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  320
                  337
                  327
               
               
                  11.3
                  Other than full-time permanent
                  2
                  2
                  2
               
               
                  11.5
                  Other personnel compensation
                  2
                  1
                  2
               
               
                  11.8
                  Special personal services payments
                  
                  1
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  324
                  341
                  331
               
               
                  12.1
                  Civilian personnel benefits
                  105
                  109
                  107
               
               
                  21.0
                  Travel and transportation of persons
                  13
                  13
                  15
               
               
                  22.0
                  Transportation of things
                  1
                  1
                  1
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  17
                  14
                  15
               
               
                  25.1
                  Advisory and assistance services
                  466
                  442
                  473
               
               
                  25.2
                  Other services from non-Federal sources
                  52
                  45
                  49
               
               
                  25.3
                  Other goods and services from Federal sources
                  42
                  40
                  43
               
               
                  25.4
                  Operation and maintenance of facilities
                  108
                  103
                  110
               
               
                  25.5
                  Research and development contracts
                  2,850
                  2,858
                  3,063
               
               
                  25.7
                  Operation and maintenance of equipment
                  142
                  148
                  159
               
               
                  26.0
                  Supplies and materials
                  32
                  26
                  28
               
               
                  31.0
                  Equipment
                  46
                  44
                  47
               
               
                  32.0
                  Land and structures
                  62
                  52
                  55
               
               
                  41.0
                  Grants, subsidies, and contributions
                  57
                  59
                  63
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  4,317
                  4,295
                  4,559
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0124â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  2,701
                  2,651
                  2,549
               
               
                  
                     
                  
               
            
         
      
         EducationUnobligated balances previously appropriated under this heading shall be available for purposes of the closure of the Office
               of Education, including but not limited to, ongoing administration, oversight, monitoring, and funding of grants previously
               awarded by the Office of Education.
      Note.âA full-year 2018 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Continuing Appropriations Act, 2018 (Division D of P.L. 115â56, as amended).
         The amounts included for 2018 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0128â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Education
                  105
                  99
                  
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  11
                  8
                  12
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  2
                  4
                  4
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  13
                  12
                  16
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  100
                  99
                  
               
               
                  1930
                  Total budgetary resources available
                  113
                  111
                  16
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  8
                  12
                  16
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  180
                  157
                  51
               
               
                  3010
                  New obligations, unexpired accounts
                  105
                  99
                  
               
               
                  3020
                  Outlays (gross)
                  â124
                  â201
                  â47
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â2
                  â4
                  â4
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  157
                  51
                  
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  180
                  157
                  51
               
               
                  3200
                  Obligated balance, end of year
                  157
                  51
                  
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  100
                  99
                  
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  12
                  99
                  
               
               
                  4011
                  Outlays from discretionary balances
                  112
                  102
                  47
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  124
                  201
                  47
               
               
                  4180
                  Budget authority, net (total)
                  100
                  99
                  
               
               
                  4190
                  Outlays, net (total)
                  124
                  201
                  47
               
               
                  
                     
                  
               
            
         
      
      
          The Budget proposes the termination of the Office of Education and its portfolio of programs and projects. Unobligated balances
            previously appropriated under this heading may be used to support close-out costs.  Moving forward, a small team at NASA headquarters
            funded out of Agency Management and Operations will be accountable for strategic direction and coordination of the agency's
            STEM engagement efforts.
         
         
          
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0128â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  5
                  3
                  
               
               
                  11.8
                  Special personal services payments
                  1
                  1
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  6
                  4
                  
               
               
                  12.1
                  Civilian personnel benefits
                  1
                  2
                  
               
               
                  25.1
                  Advisory and assistance services
                  2
                  4
                  
               
               
                  25.2
                  Other services from non-Federal sources
                  4
                  6
                  
               
               
                  25.5
                  Research and development contracts
                  4
                  6
                  
               
               
                  25.7
                  Operation and maintenance of equipment
                  1
                  2
                  
               
               
                  41.0
                  Grants, subsidies, and contributions
                  87
                  75
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  105
                  99
                  
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0128â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  51
                  30
                  
               
               
                  
                     
                  
               
            
         
      
         Safety, security and mission servicesFor necessary expenses, not otherwise provided for, in the conduct and support of science, aeronautics, space technology,
            exploration, space operations and education research and development activities, including research, development, operations,
            support, and services; maintenance and repair, facility planning and design; space flight, spacecraft control, and communications
            activities; program management; personnel and related costs, including uniforms or allowances therefor, as authorized by sections
            5901 and 5902 of title 5, United States Code; travel expenses; purchase and hire of passenger motor vehicles; not to exceed
            $63,000 for official reception and representation expenses; and purchase, lease, charter, maintenance, and operation of mission
            and administrative aircraft, $2,749,700,000, to remain available until September 30, 2020.
      Note.âA full-year 2018 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Continuing Appropriations Act, 2018 (Division D of P.L. 115â56, as amended).
         The amounts included for 2018 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0122â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Cross Agency Support (Direct)
                  2,777
                  2,750
                  2,750
               
               
                  0801
                  Cross Agency Support (Reimbursable)
                  2,357
                  2,816
                  2,051
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations, unexpired accounts
                  5,134
                  5,566
                  4,801
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  303
                  451
                  499
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  32
                  48
                  48
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  335
                  499
                  547
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  2,769
                  2,750
                  2,750
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  2,238
                  2,816
                  2,051
               
               
                  1701
                  Change in uncollected payments, Federal sources
                  243
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1750
                  Spending auth from offsetting collections, disc (total)
                  2,481
                  2,816
                  2,051
               
               
                  1900
                  Budget authority (total)
                  5,250
                  5,566
                  4,801
               
               
                  1930
                  Total budgetary resources available
                  5,585
                  6,065
                  5,348
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  451
                  499
                  547
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  2,226
                  2,185
                  2,847
               
               
                  3010
                  New obligations, unexpired accounts
                  5,134
                  5,566
                  4,801
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  9
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â5,145
                  â4,856
                  â5,905
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â32
                  â48
                  â48
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â7
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  2,185
                  2,847
                  1,695
               
               
                  
                  Uncollected payments:
               
               
                  3060
                  Uncollected pymts, Fed sources, brought forward, Oct 1
                  â1,443
                  â1,613
                  â1,613
               
               
                  3070
                  Change in uncollected pymts, Fed sources, unexpired
                  â243
                  
                  
               
               
                  3071
                  Change in uncollected pymts, Fed sources, expired
                  73
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3090
                  Uncollected pymts, Fed sources, end of year
                  â1,613
                  â1,613
                  â1,613
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  783
                  572
                  1,234
               
               
                  3200
                  Obligated balance, end of year
                  572
                  1,234
                  82
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  5,250
                  5,566
                  4,801
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  2,990
                  3,157
                  2,897
               
               
                  4011
                  Outlays from discretionary balances
                  2,155
                  1,699
                  3,008
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  5,145
                  4,856
                  5,905
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4030
                  Federal sources
                  â2,091
                  â2,548
                  â1,846
               
               
                  4033
                  Non-Federal sources
                  â220
                  â268
                  â205
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4040
                  Offsets against gross budget authority  and outlays (total)
                  â2,311
                  â2,816
                  â2,051
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4050
                  Change in uncollected pymts, Fed sources, unexpired
                  â243
                  
                  
               
               
                  4052
                  Offsetting collections credited to expired accounts
                  73
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4060
                  Additional offsets against budget authority only (total)
                  â170
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  2,769
                  2,750
                  2,750
               
               
                  4080
                  Outlays, net (discretionary)
                  2,834
                  2,040
                  3,854
               
               
                  4180
                  Budget authority, net (total)
                  2,769
                  2,750
                  2,750
               
               
                  4190
                  Outlays, net (total)
                  2,834
                  2,040
                  3,854
               
               
                  
                     
                  
               
            
         
      
      
         Safety, Security, and Mission Services (SSMS) manages agency-wide mission support functions and some of NASA's unique research
            facilities.
         
         This appropriation provides for the operations and maintenance, salaries and related expenses, and other general and administrative
            activities that support all NASA's missions.
         
         Under SSMS, Center Management and Operations includes the basic costs to manage and operate each of the nine NASA field centers
            and to maintain the technical capabilities required to support the Agency's Mission. The SSMS budget is not directly allocated
            or aligned to specific program or project requirements, but is centralized for efficient and effective administration and
            operation of the NASA Centers.
         
         Under SSMS, Agency Management and Operations provides for the management and oversight of corporate programs, the performance
            of agency-wide activities and functions, and the maintenance of unique research capabilities and facilities. Responsibilities
            include budget formulation and execution; establishment of management policies, procedures, and performance criteria; evaluation
            of progress; and coordination and integration of the Agency's activities.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0122â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  883
                  994
                  869
               
               
                  11.3
                  Other than full-time permanent
                  17
                  20
                  17
               
               
                  11.5
                  Other personnel compensation
                  30
                  29
                  29
               
               
                  11.8
                  Special personal services payments
                  
                  1
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  930
                  1,044
                  915
               
               
                  12.1
                  Civilian personnel benefits
                  281
                  314
                  278
               
               
                  13.0
                  Benefits for former personnel
                  1
                  1
                  1
               
               
                  21.0
                  Travel and transportation of persons
                  22
                  19
                  22
               
               
                  22.0
                  Transportation of things
                  2
                  2
                  2
               
               
                  23.1
                  Rental payments to GSA
                  7
                  6
                  7
               
               
                  23.2
                  Rental payments to others
                  22
                  20
                  22
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  59
                  53
                  59
               
               
                  24.0
                  Printing and reproduction
                  3
                  3
                  3
               
               
                  25.1
                  Advisory and assistance services
                  249
                  222
                  247
               
               
                  25.2
                  Other services from non-Federal sources
                  264
                  234
                  261
               
               
                  25.3
                  Other goods and services from Federal sources
                  49
                  43
                  48
               
               
                  25.4
                  Operation and maintenance of facilities
                  220
                  195
                  217
               
               
                  25.5
                  Research and development contracts
                  176
                  157
                  175
               
               
                  25.6
                  Medical care
                  8
                  7
                  8
               
               
                  25.7
                  Operation and maintenance of equipment
                  403
                  357
                  405
               
               
                  26.0
                  Supplies and materials
                  16
                  15
                  16
               
               
                  31.0
                  Equipment
                  33
                  29
                  32
               
               
                  32.0
                  Land and structures
                  16
                  15
                  16
               
               
                  41.0
                  Grants, subsidies, and contributions
                  16
                  14
                  16
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.0
                  Direct obligations
                  2,777
                  2,750
                  2,750
               
               
                  99.0
                  Reimbursable obligations
                  2,357
                  2,816
                  2,051
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  5,134
                  5,566
                  4,801
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0122â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  7,337
                  7,690
                  7,655
               
               
                  2001
                  Reimbursable civilian full-time equivalent employment
                  326
                  263
                  307
               
               
                  
                     
                  
               
            
         
      
         construction and environmental compliance and restorationFor necessary expenses for construction of facilities including repair, rehabilitation, revitalization, and modification of
            facilities, construction of new facilities and additions to existing facilities, facility planning and design, and restoration,
            and acquisition or condemnation of real property, as authorized by law, and environmental compliance and restoration, $348,200,000, to remain available until September 30, 2024: Provided, That proceeds from leases deposited into this account shall be available for a period of 5 years to the extent and in amounts
            as provided in annual appropriations Acts: Provided further, That such proceeds referred to in the preceding proviso shall be available for obligation for fiscal year 2019 in an amount not to exceed $9,470,300: Provided further, That each annual budget request shall include an annual estimate of gross receipts and collections and proposed use of all
            funds collected pursuant to section 20145 of title 51, United States Code.
      Note.âA full-year 2018 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Continuing Appropriations Act, 2018 (Division D of P.L. 115â56, as amended).
         The amounts included for 2018 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0130â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Construction and Environmental Compliance and Restoration (Direct)
                  439
                  408
                  398
               
               
                  0801
                  Construction and Environmental Compliance and Restoration (Reimbursable)
                  4
                  9
                  9
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations, unexpired accounts
                  443
                  417
                  407
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  134
                  269
                  281
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  14
                  62
                  62
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  148
                  331
                  343
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  544
                  358
                  348
               
               
                  1121
                  Appropriations transferred from other acct Space Operations [080â0115]
                  8
                  
                  
               
               
                  1121
                  Appropriations transferred from other acct Aeronautics [080â0126]
                  4
                  
                  
               
               
                  1121
                  Appropriations transferred from other acct Science [080â0120]
                  3
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  559
                  358
                  348
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  5
                  9
                  9
               
               
                  1900
                  Budget authority (total)
                  564
                  367
                  357
               
               
                  1930
                  Total budgetary resources available
                  712
                  698
                  700
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  269
                  281
                  293
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  719
                  658
                  652
               
               
                  3010
                  New obligations, unexpired accounts
                  443
                  417
                  407
               
               
                  3020
                  Outlays (gross)
                  â490
                  â361
                  â483
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â14
                  â62
                  â62
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  658
                  652
                  514
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  719
                  658
                  652
               
               
                  3200
                  Obligated balance, end of year
                  658
                  652
                  514
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  564
                  367
                  357
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  45
                  22
                  22
               
               
                  4011
                  Outlays from discretionary balances
                  445
                  339
                  461
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  490
                  361
                  483
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â5
                  â9
                  â9
               
               
                  4180
                  Budget authority, net (total)
                  559
                  358
                  348
               
               
                  4190
                  Outlays, net (total)
                  485
                  352
                  474
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for NASA's construction and environmental compliance and restoration activities, and makes available
            to use the net proceeds from Enhanced Use Leases for maintenance, capital revitalization, and improvement of real property
            assets and related personal property at NASA Centers received under the authority of section 20145 of the National Aeronautics
            and Space Act (51 U.S.C. 20145). The funding provides for all of the research; development; operations; design, repair, rehabilitation,
            modification of facilities, and construction of new facilities; and other general and administrative activities required to
            execute the programs within this account.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0130â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  1
                  1
                  1
               
               
                  25.1
                  Advisory and assistance services
                  33
                  31
                  30
               
               
                  25.2
                  Other services from non-Federal sources
                  17
                  16
                  16
               
               
                  25.3
                  Other goods and services from Federal sources
                  20
                  18
                  18
               
               
                  25.4
                  Operation and maintenance of facilities
                  93
                  86
                  84
               
               
                  25.5
                  Research and development contracts
                  8
                  8
                  8
               
               
                  25.7
                  Operation and maintenance of equipment
                  22
                  20
                  20
               
               
                  31.0
                  Equipment
                  2
                  1
                  1
               
               
                  32.0
                  Land and structures
                  243
                  227
                  220
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.0
                  Direct obligations
                  439
                  408
                  398
               
               
                  99.0
                  Reimbursable obligations
                  4
                  9
                  9
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  443
                  417
                  407
               
               
                  
                     
                  
               
            
         
      
          LEO and Spaceflight Operations
         For necessary expenses, not otherwise provided for, in the conduct and support of space operations research and development
            activities, including research, development, operations, support and services; space flight, spacecraft control and communications
            activities, including operations, production, and services; maintenance and repair, facility planning and design; program
            management; personnel and related costs, including uniforms or allowances therefor, as authorized by sections 5901 and 5902
            of title 5, United States Code; travel expenses; purchase and hire of passenger motor vehicles; and purchase, lease, charter,
            maintenance and operation of mission and administrative aircraft, $4,509,600,000, to remain available until September 30, 2020.
      Note.âA full-year 2018 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Continuing Appropriations Act, 2018 (Division D of P.L. 115â56, as amended).
         The amounts included for 2018 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0115â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Space Operations
                  4,996
                  4,917
                  4,510
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  104
                  91
                  449
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  39
                  358
                  108
               
               
                  1033
                  Recoveries of prior year paid obligations
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  144
                  449
                  557
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  4,951
                  4,917
                  4,510
               
               
                  1120
                  Appropriations transferred to other accts CECR [080â0130]
                  â8
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  4,943
                  4,917
                  4,510
               
               
                  1900
                  Budget authority (total)
                  4,943
                  4,917
                  4,510
               
               
                  1930
                  Total budgetary resources available
                  5,087
                  5,366
                  5,067
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  91
                  449
                  557
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1,717
                  2,431
                  1,567
               
               
                  3010
                  New obligations, unexpired accounts
                  4,996
                  4,917
                  4,510
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  7
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â4,242
                  â5,423
                  â4,716
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â39
                  â358
                  â108
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â8
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  2,431
                  1,567
                  1,253
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1,717
                  2,431
                  1,567
               
               
                  3200
                  Obligated balance, end of year
                  2,431
                  1,567
                  1,253
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  4,943
                  4,917
                  4,510
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  2,589
                  3,147
                  2,887
               
               
                  4011
                  Outlays from discretionary balances
                  1,652
                  2,276
                  1,829
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  4,241
                  5,423
                  4,716
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â5
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4040
                  Offsets against gross budget authority  and outlays (total)
                  â5
                  
                  
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4052
                  Offsetting collections credited to expired accounts
                  4
                  
                  
               
               
                  4053
                  Recoveries of prior year paid obligations, unexpired accounts
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4060
                  Additional offsets against budget authority only (total)
                  5
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  4,943
                  4,917
                  4,510
               
               
                  4080
                  Outlays, net (discretionary)
                  4,236
                  5,423
                  4,716
               
               
                  
                  Mandatory:
               
               
                  
                  Outlays, gross:
               
               
                  4101
                  Outlays from mandatory balances
                  1
                  
                  
               
               
                  4180
                  Budget authority, net (total)
                  4,943
                  4,917
                  4,510
               
               
                  4190
                  Outlays, net (total)
                  4,237
                  5,423
                  4,716
               
               
                  
                     
                  
               
            
         
      
      
         The FY 2019 President's Budget includes a new account structure for human space exploration and technology programs to improve
            alignment of funding with NASA's new strategic space exploration objectives. It renames the Space Operations, Exploration,
            and Space Technology accounts as LEO and Spaceflight Operations, Deep Space Exploration Systems, and Exploration Research
            and Technology, and realigns some program funding. As part of this realignment, NASA also plans to restructure the Human Exploration
            and Operations Mission Directorate and Space Technology Mission Directorate.
         
         This appropriation provides for the full costs associated with Low Earth Orbit (LEO) and spaceflight operations activities
            of the agency. The full costs include all labor, travel, procurement, test, and fabrication costs to execute these programs,
            which provide for all of the research, development, operations, salaries and related expenses, and other general and administrative
            activities supporting the programs within this account. Major themes within the LEO and Spaceflight Operations account include
            the International Space Station, Space Transportation, Space and Flight Support, and Commercial LEO Development. Performance
            goals associated with these activities are addressed in NASA's detailed budget request.
         
         The International Space Station (ISS) is a complex of research laboratories in LEO where America and its international partners,
            including Russia, Canada, Europe, and Japan, conduct unique scientific and technological investigations in a microgravity
            environment. The objective of the International Space Station is to support human space exploration and conduct science experiments
            and technology development unique to the on-orbit attributes of the facility.
         
         Space Transportation's objective is to transport U.S. astronauts and cargo safely back and forth to the ISS and potentially,
            in the future, to other orbital platforms and destinations. This theme includes the Commercial Crew Program and Crew and Cargo
            Program. Maintaining the ISS requires a fleet of vehicles and launch locations to transport astronauts, science experiments,
            critical supplies, maintenance hardware, and propellant to the ISS, and to dispose of waste generated on the ISS. The Commercial
            Crew Program partners with two U.S. companies, SpaceX and Boeing, to develop and operate safe, reliable, and affordable crew
            transportation to LEO. The Crew and Cargo Program purchases cargo transportation to the ISS under commercial resupply services
            contracts with Orbital ATK, SpaceX, and Sierra Nevada and purchases crew transportation from the Russian Roscosmos State Corporation,
            Boeing, and SpaceX. Payments to develop and test commercial crew vehicles, and for initial Post Certification Missions (PCMs)
            for each provider are funded by the Commercial Crew Program, whereas subsequent payments for operational commercial crew missions
            are funded by the Crew and Cargo Program.
         
         Space and Flight Support is comprised of multiple programs that provide ongoing support for a wide range of services required
            for safe and successful space mission operations. These programs include Space Communications and Navigation, Human Space
            Flight Operations, Launch Services, and Rocket Propulsion Testing. Services are provided to a wide range of customers including
            NASA, other U.S. Federal agencies, foreign governments, and commercial customers.
         
         Commercial LEO Development will support efforts to expand commercial activities in LEO, with a focus on enabling, developing,
            and deploying commercial platforms that can be used by NASA and other customers.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0115â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  293
                  309
                  296
               
               
                  11.3
                  Other than full-time permanent
                  3
                  2
                  3
               
               
                  11.5
                  Other personnel compensation
                  2
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  298
                  313
                  301
               
               
                  12.1
                  Civilian personnel benefits
                  95
                  98
                  96
               
               
                  21.0
                  Travel and transportation of persons
                  15
                  13
                  12
               
               
                  22.0
                  Transportation of things
                  1,594
                  1,493
                  1,362
               
               
                  23.2
                  Rental payments to others
                  2
                  3
                  3
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  4
                  4
                  4
               
               
                  24.0
                  Printing and reproduction
                  1
                  1
                  
               
               
                  25.1
                  Advisory and assistance services
                  95
                  84
                  77
               
               
                  25.2
                  Other services from non-Federal sources
                  149
                  127
                  116
               
               
                  25.3
                  Other goods and services from Federal sources
                  29
                  25
                  23
               
               
                  25.4
                  Operation and maintenance of facilities
                  49
                  37
                  34
               
               
                  25.5
                  Research and development contracts
                  2,362
                  2,414
                  2,204
               
               
                  25.7
                  Operation and maintenance of equipment
                  225
                  233
                  212
               
               
                  26.0
                  Supplies and materials
                  18
                  19
                  17
               
               
                  31.0
                  Equipment
                  13
                  16
                  15
               
               
                  32.0
                  Land and structures
                  7
                  5
                  4
               
               
                  41.0
                  Grants, subsidies, and contributions
                  40
                  32
                  30
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  4,996
                  4,917
                  4,510
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0115â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  2,407
                  2,404
                  2,252
               
               
                  
                     
                  
               
            
         
      
         Office of inspector generalFor necessary expenses of the Office of Inspector General in carrying out the Inspector General Act of 1978, $39,300,000,
            to remain available until September 30, 2020.
      Note.âA full-year 2018 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Continuing Appropriations Act, 2018 (Division D of P.L. 115â56, as amended).
         The amounts included for 2018 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0109â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Office of Inspector General (Direct)
                  38
                  38
                  39
               
               
                  0801
                  Office of Inspector General (Reimbursable)
                  1
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations, unexpired accounts
                  39
                  40
                  41
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  38
                  38
                  39
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  1
                  2
                  2
               
               
                  1900
                  Budget authority (total)
                  39
                  40
                  41
               
               
                  1930
                  Total budgetary resources available
                  39
                  40
                  41
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  4
                  4
                  4
               
               
                  3010
                  New obligations, unexpired accounts
                  39
                  40
                  41
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  1
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â39
                  â40
                  â41
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  4
                  4
                  4
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  4
                  4
                  4
               
               
                  3200
                  Obligated balance, end of year
                  4
                  4
                  4
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  39
                  40
                  41
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  35
                  36
                  37
               
               
                  4011
                  Outlays from discretionary balances
                  4
                  4
                  4
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  39
                  40
                  41
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4030
                  Federal sources
                  â1
                  â2
                  â2
               
               
                  4180
                  Budget authority, net (total)
                  38
                  38
                  39
               
               
                  4190
                  Outlays, net (total)
                  38
                  38
                  39
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for the full costs associated with the operations of the NASA Office of Inspector General. The
            mission of the Office of Inspector General is to conduct audits and investigations of agency activities to prevent and detect
            fraud, waste, abuse, and mismanagement. The Inspector General keeps the NASA Administrator and the Congress informed of problems
            and deficiencies in agency programs and operations.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0109â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  11.1
                  Personnel compensation: Full-time permanent
                  23
                  23
                  24
               
               
                  12.1
                  Civilian personnel benefits
                  9
                  9
                  9
               
               
                  21.0
                  Travel and transportation of persons
                  1
                  1
                  1
               
               
                  25.2
                  Other services from non-Federal sources
                  3
                  3
                  3
               
               
                  25.3
                  Other goods and services from Federal sources
                  1
                  1
                  1
               
               
                  25.7
                  Operation and maintenance of equipment
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.0
                  Direct obligations
                  38
                  38
                  39
               
               
                  99.0
                  Reimbursable obligations
                  1
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  39
                  40
                  41
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0109â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  186
                  186
                  186
               
               
                  2001
                  Reimbursable civilian full-time equivalent employment
                  6
                  6
                  6
               
               
                  
                     
                  
               
            
         
      
         Science, Aeronautics, and Exploration                                                                                    
            
         Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0114â0â1â999
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  1
                  1
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1131
                  Unobligated balance of appropriations permanently reduced
                  
                  
                  â1
               
               
                  1930
                  Total budgetary resources available
                  1
                  1
                  
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  1
                  1
                  
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1
                  1
                  
               
               
                  3020
                  Outlays (gross)
                  
                  â1
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  1
                  
                  
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1
                  1
                  
               
               
                  3200
                  Obligated balance, end of year
                  1
                  
                  
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  
                  
                  â1
               
               
                  
                  Outlays, gross:
               
               
                  4011
                  Outlays from discretionary balances
                  
                  1
                  
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  â1
               
               
                  4190
                  Outlays, net (total)
                  
                  1
                  
               
               
                  
                     
                  
               
            
         
      
      
         The Science, Aeronautics, and Exploration account shows spending from balances prior to the account restructuring. In FY 2019,
            obligated balances will be transferred and merged into Treasury account 80â0130. Unobligated balances will be returned to
            Treasury and thereafter, this account will be closed.
         
      
         Human Space Flight                                                                                                       
            
         Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0111â0â1â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  6
                  1
                  1
               
               
                  3020
                  Outlays (gross)
                  â1
                  
                  
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â4
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  1
                  1
                  1
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  6
                  1
                  1
               
               
                  3200
                  Obligated balance, end of year
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  
                  Outlays, gross:
               
               
                  4011
                  Outlays from discretionary balances
                  1
                  
                  
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  1
                  
                  
               
               
                  
                     
                  
               
            
         
      
      
          The Human Space Flight account shows spending from balances prior to the account restructuring. In FY 2019, obligated balances
            will be transferred and merged into Treasury accounts 80â0122, 80â0115 and 80â0130. Unobligated balances will be returned
            to Treasury and thereafter, this account will be closed.
         
      
         Science, Aeronautics and Technology                                                                                      
            
         Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0110â0â1â999
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  1
                  1
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1131
                  Unobligated balance of appropriations permanently reduced
                  
                  
                  â1
               
               
                  1930
                  Total budgetary resources available
                  1
                  1
                  
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  1
                  1
                  
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  1
                  1
                  1
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1
                  1
                  1
               
               
                  3200
                  Obligated balance, end of year
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  
                  
                  â1
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  â1
               
               
                  4190
                  Outlays, net (total)
                  
                  
                  
               
               
                  
                     
                  
               
            
         
      
      
         The Science, Aeronautics, and Technology account shows spending from balances prior to the account restructuring. In FY 2019,
            obligated balances will be transferred and merged into Treasury account 80â0130. Unobligated balances will be returned to
            Treasury and thereafter, this account will be closed.
         
      
         Mission Support                                                                                                          
            
         Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0112â0â1â999
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  1
                  2
               
               
                  1033
                  Recoveries of prior year paid obligations
                  
                  1
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  1
                  2
                  2
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1131
                  Unobligated balance of appropriations permanently reduced
                  
                  
                  â2
               
               
                  1930
                  Total budgetary resources available
                  1
                  2
                  
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  1
                  2
                  
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  
                  
                  â2
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  
                  â1
                  
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4053
                  Recoveries of prior year paid obligations, unexpired accounts
                  
                  1
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  
                  
                  â2
               
               
                  4080
                  Outlays, net (discretionary)
                  
                  â1
                  
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  â2
               
               
                  4190
                  Outlays, net (total)
                  
                  â1
                  
               
               
                  
                     
                  
               
            
         
      
      
         The Mission Support account shows spending from residual balances associated with construction of facilities activities prior
            to 2004.
         
         In FY 2019, obligated balances will be transferred and merged into Treasury accounts 80â0122 and 80â0130. Unobligated balances
            will be returned to Treasury and thereafter, this account will be closed.
         
      
         Working Capital Fund                                                                                                     
            
         Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â4546â0â4â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0801
                  Working Capital Fund (Reimbursable)
                  436
                  504
                  521
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  13
                  15
                  17
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  1
                  3
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  14
                  18
                  17
               
               
                  
                  Budget authority:
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  437
                  503
                  523
               
               
                  1930
                  Total budgetary resources available
                  451
                  521
                  540
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  15
                  17
                  19
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  168
                  182
                  191
               
               
                  3010
                  New obligations, unexpired accounts
                  436
                  504
                  521
               
               
                  3020
                  Outlays (gross)
                  â421
                  â492
                  â517
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â1
                  â3
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  182
                  191
                  195
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  168
                  182
                  191
               
               
                  3200
                  Obligated balance, end of year
                  182
                  191
                  195
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  437
                  503
                  523
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  240
                  302
                  314
               
               
                  4011
                  Outlays from discretionary balances
                  181
                  190
                  203
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  421
                  492
                  517
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4030
                  Federal sources
                  â422
                  â478
                  â493
               
               
                  4033
                  Non-Federal sources
                  â15
                  â25
                  â30
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4040
                  Offsets against gross budget authority  and outlays (total)
                  â437
                  â503
                  â523
               
               
                  4080
                  Outlays, net (discretionary)
                  â16
                  â11
                  â6
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  â16
                  â11
                  â6
               
               
                  
                     
                  
               
            
         
      
      
         The Working Capital Fund provides goods and services on a reimbursable basis. The Fund finances four program activities. The
            first is the Solutions for Enterprise-wide Procurement program, which finances, on an agency-wide basis, scientific and engineering
            workstation procurement. The second program is the Information Technology Infrastructure Integration Program which consolidates
            and centralizes management of NASA information technology services in the areas of Tier 1 service desk and ordering, web services
            and technologies, enterprise business and management applications, integrated network/communications services, end user services,
            and data center services. The third program, NASA's Shared Services Center, performs selected financial management, human
            resources, information technology, and procurement services for NASA Headquarters and Centers. The last program, the National
            Center for Critical Information Processing and Storage, provides federal customers collocation services at a Tier III level
            with complete redundancy in the electrical distribution system from the national grid to the rack level.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â4546â0â4â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Reimbursable obligations:
               
               
                  11.1
                  Personnel compensation: Full-time permanent
                  15
                  16
                  16
               
               
                  12.1
                  Civilian personnel benefits
                  5
                  6
                  6
               
               
                  21.0
                  Travel and transportation of persons
                  1
                  1
                  1
               
               
                  23.2
                  Rental payments to others
                  1
                  1
                  1
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  4
                  4
                  4
               
               
                  25.2
                  Other services from non-Federal sources
                  46
                  55
                  60
               
               
                  25.3
                  Other goods and services from Federal sources
                  1
                  3
                  5
               
               
                  25.4
                  Operation and maintenance of facilities
                  19
                  25
                  25
               
               
                  25.7
                  Operation and maintenance of equipment
                  343
                  391
                  401
               
               
                  26.0
                  Supplies and materials
                  1
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  436
                  504
                  521
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â4546â0â4â252
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  2001
                  Reimbursable civilian full-time equivalent employment
                  158
                  158
                  158
               
               
                  
                     
                  
               
            
         
      
      Trust Funds  
         Science, Space, and Technology Education Trust Fund                                                                      
            
         Special and Trust Fund Receipts (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â8978â0â7â503
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  0100
                  Balance, start of year
                  15
                  16
                  16
               
               
                  0198
                  Rounding adjustment
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0199
                  Balance, start of year
                  16
                  16
                  16
               
               
                  
                  Receipts:
               
               
                  
                  Current law:
               
               
                  1140
                  Earnings on Investments, Science, Space and Technology Education Trust Fund
                  2
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  2000
                  Total: Balances and receipts
                  18
                  17
                  17
               
               
                  
                  Appropriations:
               
               
                  
                  Current law:
               
               
                  2101
                  Science, Space, and Technology Education Trust Fund
                  â1
                  â1
                  â1
               
               
                  5098
                  Rounding adjustment
                  â1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  5099
                  Balance, end of year
                  16
                  16
                  16
               
               
                  
                     
                  
               
            
         
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â8978â0â7â503
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Science, Space, and Technology Education Trust Fund
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations (object class 41.0)
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  1
                  1
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, mandatory:
               
               
                  1201
                  Appropriation (special or trust fund)
                  1
                  1
                  1
               
               
                  1930
                  Total budgetary resources available
                  2
                  2
                  2
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3010
                  New obligations, unexpired accounts
                  1
                  1
                  1
               
               
                  3020
                  Outlays (gross)
                  â1
                  â1
                  â1
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Mandatory:
               
               
                  4090
                  Budget authority, gross
                  1
                  1
                  1
               
               
                  
                  Outlays, gross:
               
               
                  4100
                  Outlays from new mandatory authority
                  
                  1
                  1
               
               
                  4101
                  Outlays from mandatory balances
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4110
                  Outlays, gross (total)
                  1
                  1
                  1
               
               
                  4180
                  Budget authority, net (total)
                  1
                  1
                  1
               
               
                  4190
                  Outlays, net (total)
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  5000
                  Total investments, SOY: Federal securities: Par value
                  16
                  17
                  17
               
               
                  5001
                  Total investments, EOY: Federal securities: Par value
                  17
                  17
                  17
               
               
                  
                     
                  
               
            
         
      
         Administrative Provisions                                                                                                
            
         
         Administrative provisions
         (Including transfers of funds)Funds for any announced prize otherwise authorized shall remain available, without fiscal year limitation, until the prize
            is claimed or the offer is withdrawn.
      Not to exceed 5 percent of any appropriation made available for the current fiscal year for the National Aeronautics and Space Administration in this Act, or provided for the National Aeronautics and Space Administration
               under previous appropriations Acts that remain available for obligation or expenditure in fiscal year 2019, may be transferred between such appropriations, but no such appropriation, except as otherwise specifically provided, shall
            be increased by more than 10 percent by any such transfers. Any such funds transferred to "Construction and Environmental
            Compliance and Restoration" for construction activities shall not increase that appropriation by more than 20 percent. Balances
            so transferred shall be merged with and available for the same purposes and the same time period as the appropriations to
            which transferred. Any transfer pursuant to this provision shall be treated as a reprogramming of funds under section 504
             of this Act and shall not be available for obligation except in compliance with the procedures set forth in that section.
      The spending plan required by this Act shall be provided by NASA at the theme and program level. The spending plan, as well
            as any subsequent change of an amount established in that spending plan that meets the notification requirements of section
            504 of this Act, shall be treated as a reprogramming under section 504 of this Act and shall not be available for obligation
            or expenditure except in compliance with the procedures set forth in that section.
      
         General and Administrative Provisions                                                                                    
            
         
         GENERAL FUND RECEIPT ACCOUNTS                                                                                            
            
         (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  
                  2017 actual
                  2018 est.
                  2019 est.
               
               
                  
                     
                  
               
               
                  Offsetting receipts from the public:
               
               
                  080â322000
                  All Other General Fund Proprietary Receipts Including Budget Clearing Accounts
                  2
                  4
                  4
               
               
                  General Fund Offsetting receipts from the public
                  2
                  4
                  4
               
               
                  
                     
                  
               
               
                  
               
               
                  Intragovernmental payments:
               
               
                  080â388500
                  Undistributed Intragovernmental Payments and Receivables from Cancelled Accounts
                  3
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  General Fund Intragovernmental payments
                  3
                  2
                  2