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


[[Page 1051]]

 
               NATIONAL AERONAUTICS AND SPACE ADMINISTRATION

                              Federal Funds

General and special funds:

                           Human Space Flight

    For necessary expenses, not otherwise provided for, in the conduct 
and support of human space flight research and development activities, 
including research, development, operations, and services; maintenance; 
construction of facilities including repair, rehabilitation, and 
modification of real and personal property, and acquisition or 
condemnation of real property, as authorized by law; space flight, 
spacecraft control and communications activities including operations, 
production, and services; and purchase, lease, charter, maintenance and 
operation of mission and administrative aircraft, [$5,480,000,000] 
$5,638,000,000, to remain available until September 30, [2000] 2001.
    For necessary expenses of the International Space Station, to become 
available on October 1 of the fiscal year specified and remain available 
for that and the following fiscal year, as follows: for fiscal year 
2001, $2,328,000,000; for fiscal year 2002, $2,091,000,000; for fiscal 
year 2003, $1,721,000,000; and for fiscal year 2004, $1,573,000,000. 
(Departments of Veterans Affairs and Housing and Urban Development, and 
Independent Agencies Appropriations Act, 1999.)

               Program and Financing (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0111-0-1-252      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

    Obligations by program activity:
      Direct program:

00.01   Space station...................       2,360       2,397       2,474
00.03   Payload and utilization 
          operations....................         223         184         168
00.04   Space shuttle...................       2,932       2,896       2,987
09.01 Reimbursable program..............          61         209         205
                                           ---------   ---------  ----------
10.00   Total new obligations...........       5,576       5,686       5,834
----------------------------------------------------------------------------

    Budgetary resources available for obligation:
21.40 Unobligated balance available, 
        start of year...................         226         271         274
22.00 New budget authority (gross)......       5,621       5,689       5,843
                                           ---------   ---------  ----------
23.90   Total budgetary resources 
          available for obligation......       5,847       5,960       6,117
23.95 Total new obligations.............      -5,576      -5,686      -5,834
24.40 Unobligated balance available, end 
        of year.........................         271         274         283
----------------------------------------------------------------------------

    New budget authority (gross), detail:
      Current:

40.00   Appropriation...................       5,507       5,480       5,638
42.00   Transferred from other accounts.          53
                                           ---------   ---------  ----------
43.00     Appropriation (total).........       5,560       5,480       5,638
      Permanent:

        Spending authority from 
            offsetting collections:
68.00     Offsetting collections (cash).          66         209         205
68.10     From Federal sources: Change 
            in receivables and unpaid, 
            unfilled orders.............          -5
                                           ---------   ---------  ----------
68.90       Spending authority from 
              offsetting collections 
              (total)...................          61         209         205
                                           ---------   ---------  ----------
70.00   Total new budget authority 
          (gross).......................       5,621       5,689       5,843
----------------------------------------------------------------------------

    Change in unpaid obligations:
      Unpaid obligations, start of year:

72.40   Obligated balance, start of year       1,700       1,662       1,613
72.95   From Federal sources: 
          Receivables and unpaid, 
          unfilled orders...............          28          23          23
                                           ---------   ---------  ----------
72.99     Total unpaid obligations, 
            start of year...............       1,728       1,685       1,636
73.10 Total new obligations.............       5,576       5,686       5,834
73.20 Total outlays (gross).............      -5,617      -5,735      -5,733
      Unpaid obligations, end of year:

74.40   Obligated balance, end of year..       1,662       1,613       1,714
74.95   From Federal sources: 
          Receivables and unpaid, 
          unfilled orders...............          23          23          23
                                           ---------   ---------  ----------
74.99     Total unpaid obligations, end 
            of year.....................       1,685       1,636       1,737
----------------------------------------------------------------------------

    Outlays (gross), detail:
86.90 Outlays from new current authority       3,768       3,655       3,761
86.93 Outlays from current balances.....       1,778       1,871       1,767
86.97 Outlays from new permanent 
        authority.......................          37         209         205
86.98 Outlays from permanent balances...          34
                                           ---------   ---------  ----------
87.00   Total outlays (gross)...........       5,617       5,735       5,733
----------------------------------------------------------------------------

    Offsets:
      Against gross budget authority and outlays:

        Offsetting collections (cash) 
            from:
88.40     Non-Federal sources...........         -26         -19         -58
88.45     Offsetting governmental 
            collections.................         -40        -190        -147
                                           ---------   ---------  ----------
88.90       Total, offsetting 
              collections (cash)........         -66        -209        -205
88.95 From Federal sources: Change in 
        receivables and unpaid, unfilled 
        orders..........................           5
----------------------------------------------------------------------------

    Net budget authority and outlays:
89.00 Budget authority..................       5,560       5,480       5,638
90.00 Outlays...........................       5,551       5,526       5,528
---------------------------------------------------------------------------

    This appropriation provides funding for human space flight 
activities, including development of the Space Station, the Space 
Station research program, and operation of the Space Shuttle. This 
includes support of planned cooperative activities with Russia, upgrades 
to the performance and safety of the Space Shuttle, and required 
construction projects in direct support of Space Station and Space 
Shuttle programs.

Performance Objectives

    Space Station.--The International Space Station (ISS) will be an 
international laboratory in low Earth orbit on which American, Russian, 
Canadian, European, and Japanese astronauts will conduct unique 
scientific and technological investigations in a microgravity 
environment. The goal of the Station is to support activities requiring 
the unique attributes of humans in space and establish a permanent human 
presence in Earth orbit. The proposed budget provides multi-year funding 
through an advanced appropriation for the continued development of the 
vehicle and its research components and for current operations, assembly 
and utilization of the Station. With the first launches successfully 
completed, the budget includes funding to keep subsequent assembly 
missions on schedule for completion in 2004 and provide a long-term 
solution to the safe return of the full complement of Station 
crewmembers in the event of an emergency.

    In 1998, preparations for the successful launches of the first two 
components of the Station--the FGB control module and the first node--
were completed. The elements were launched in November and December, 
assembled in orbit and activated. Flight hardware elements for the next 
four U.S. assembly launches--the Z1 truss, the control moment gyros, the 
first photo-voltaic array and battery sets, initial thermal radiators, 
communication equipment, the U.S. Laboratory, and the Multi-Purpose 
Logistics Carrier--were delivered in preparation for multi-element 
integrated testing (MEIT). Crew training, payload processing, hardware 
element processing, and mission operations were supported. In 1999, 
fabrication of flight hardware, qualification testing, assembly, 
integration and mission operations will all continue. The laboratory 
module will be delivered and MEIT for flights through 6A, the outfitting 
of the lab module, will be initiated. Two logistics flights will be 
launched to the Station, as will the Russian Service Module. In 2000, 
plans are to launch seven U.S. missions to Station, including the lab 
module. The Russian launch of a Soyuz vehicle will achieve the 
capability

[[Page 1052]]

of permanent occupation of the Station with rotating crews of three. 
Phase 2 of the Station assembly will be completed with the launch of the 
airlock, and preparations will continue for the start of Phase 3 and 
increasing research utilization in 2001.

    As part of the FY 1999 operating plan, Russian Program Assurance 
(RPA) was re-established within the Space Station budget line. The RPA 
funding provides contingency activities to address ISS program 
requirements resulting from delays or shortfalls on the part of Russia 
in meeting its commitments to the ISS program. The first step in the 
contingency plan is to protect against a potential further delay in the 
Russian Service Module (SM) and its capabilities. The ISS program is 
purchasing, from the U.S. Naval Research Laboratory (NRL), an interim 
control module (ICM) to provide backup attitude control and reboost 
functions for the ISS. Additionally, the Shuttle fleet is being 
configured for reaction control system (RCS) interconnectivity 
modifications to enable greater Shuttle reboost capability to the ISS. A 
permanent U.S. propulsion capability is being developed for 
implementation in the 2002 timeframe. This includes a propulsion module, 
carriers, and activities to support propulsion logistics.

    Payload and Utilization Operations.--Spacelab program funds support 
the mission planning and hardware preparation activities required to 
support the Spacelab payloads and experiment infrastructure. In 1998, 
one Spacelab module mission (Neurolab) was flown, along with one pallet 
mission. The Spacelab program was completed in 1998 following the 
Neurolab mission. In FY 1998, Multi-Purpose Experiment Support 
Structures (MPESS), pallets and other common support equipment were 
transferred to the Payload Processing budget. All other Spacelab 
hardware has been dispositioned.

    Activities funded by the Payload Processing budget support the 
required technical expertise and facilities to perform the payload 
buildup, test and checkout, integration, servicing, transportation and 
installation in the launch vehicle. In FY 1999, launch and landing 
payload support activities will be provided for six Space Shuttle 
missions, including two pallet missions, the AXAF launch, and three 
assembly flights for the ISS. In FY 2000, launch and landing payload 
support activities will be provided for eight Space Shuttle missions, 
including seven ISS assembly and utilization flights. During this 
period, eight pallets will be used in Space Shuttle missions, including 
the third HST servicing mission and three of the ISS assembly flights. 
In FY 1999 and 2000 over 20 major and secondary payloads will be 
supported, including major hardware for ISS assembly.

    The Expendable Launch Vehicle (ELV) Mission Support budget provides 
funds for acquiring requisite launch services to meet all NASA 
requirements and for technical insight of commercially provided launch 
services. Advanced mission design/analysis and leading edge integration 
services are provided for the full range of NASA missions under 
consideration for launch on ELVs. During FY 1998, two Pegasus launches, 
SNOE and TRACE, were launched along with one Titan 11 provided by the 
USAF; and the pathfinder activity was accomplished for the first launch 
of an Atlas-Centaur from a new launch site at Vandenberg Air Force Base. 
Support for 13 missions, including EOS-AM-1, Landsat-7, and four 
planetary missions are planned for launch in FY 1999 and integration and 
technical management of 24 payloads are planned for launch in FY 2000 
and FY 2001 are supported.

     Advanced Projects pursues advanced technology developments for 
future human space flight requirements. Under this program, the X-38 
experimental vehicle is being designed to demonstrate the technology and 
processes required to produce a crew return vehicle for the ISS. 
Beginning in FY 1999, funding for Advanced Projects other than X-38 and 
X-38 transition costs were terminated. The Engineering and Technical 
Base provides basic engineering and technical capabilities to support 
the NASA mission assigned to the program carried out by the Human Space 
Flight Centers. These funds support a core capability dedicated to 
multi-program laboratories, test facilities and associated systems, 
including a skill base to respond to research, testing and simulation 
needs.

    Space Shuttle.--The Space Shuttle is a partially reusable space 
vehicle that provides several unique capabilities to the United States 
space program. These include retrieving payloads from orbit for reuse, 
servicing and repairing satellites in space, safely transporting humans 
to and from space, launching International Space Station components and 
providing an assembly platform in space, and operating and returning 
space laboratories. The six flights manifested for FY 1999 include a 
major microgravity payload, the Space Shuttle's first assembly flight of 
the International Space Station, two additional space station assembly 
and supply flights, the deployment of the Advanced X-Ray Astophysics 
Facility (AXAF), and the Shuttle Radar Topography mission, a joint DOD/
NASA Radar payload to digitally map the Earth.

    Eight flights will be flown during FY 2000, including seven 
International Space Station Space assembly flights. In addition, the 
Space Shuttle will make its third visit to the Hubble Space Telescope 
for replacement of mission critical components and routine servicing and 
upgrading some of its instrument sensors with state-of-the art detectors 
and cameras. Upgrades to the Shuttle to increase its safety, reliability 
and maintainability will be continued.

    Account Structure.--As directed in the FY 1999 VA/HUD-Independent 
Appropriations Act (P.L. 105-276), NASA is prepared to support a revised 
account structure for ``Human Space Flight.'' The new structure would 
split ``Human Space Flight'' into two accounts, ``International Space 
Station'' and ``Launch Vehicles and Payload Operations.'' A crosswalk 
between the ``Human Space Flight'' account and these two new accounts is 
provided below.

                   Crosswalk to Two Account Structure

                     (In millions of dollars of BA)

                                     1998 actual  1999 est.   2000 est.
International Space Station.........       2,441       2,305       2,483
Launch Vehicles and Payload 
Operations..........................       3,118       3,175       3,155

    However, because almost all scheduled future Space Shuttle flights 
support International Space Station development and because common 
operations and facilities will increase as the International Space 
Station moves into its operational phase, the two-account structure 
would be an obstacle to more integrated and efficient management of 
these programs and lower costs. For these reasons, the Administration 
proposes maintaining the single ``Human Space Flight'' account.

               Object Classification (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0111-0-1-252      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

      Direct obligations:

22.0    Transportation of things........           8           8           8
23.3    Communications, utilities, and 
          miscellaneous charges.........          45          45          46
24.0    Printing and reproduction.......           3           3           3
25.1    Advisory and assistance services       1,669       1,658       1,703
25.2    Other services..................         334         332         341
25.3    Purchases of goods and services 
          from Government accounts......         101         100         103
25.4    Operation and maintenance of 
          facilities....................         125         124         128
25.5    Research and development 
          contracts.....................       2,841       2,821       2,900
25.7    Operation and maintenance of 
          equipment.....................          51          51          52
26.0    Supplies and materials..........          77          76          79
31.0    Equipment.......................          84          83          86
32.0    Land and structures.............         153         152         156
41.0    Grants, subsidies, and 
          contributions.................          24          24          24
                                           ---------   ---------  ----------
99.0      Subtotal, direct obligations..       5,515       5,477       5,629

[[Page 1053]]

99.0  Reimbursable obligations..........          61         209         205
                                           ---------   ---------  ----------
99.9    Total new obligations...........       5,576       5,686       5,834
---------------------------------------------------------------------------

                                

                   Science, Aeronautics and Technology

    For necessary expenses, not otherwise provided for, in the conduct 
and support of science, aeronautics and technology research and 
development activities, including research, development, operations, and 
services; maintenance; construction of facilities including repair, 
rehabilitation, and modification of real and personal property, and 
acquisition or condemnation of real property, as authorized by law; 
space flight, spacecraft control and communications activities including 
operations, production, and services; and purchase, lease, charter, 
maintenance and operation of mission and administrative aircraft, 
[$5,653,900,000] $5,424,700,000, to remain available until September 30, 
[2000] 2001. (Departments of Veterans Affairs and Housing and Urban 
Development, and Independent Agencies Appropriations Act, 1999.)

                          (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0110-0-1-999      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

    Obligations by program activity:
      Direct program:

00.01   Space science...................       1,980       2,131       2,189
00.02   Life and microgravity science...         240         250         257
00.06   Earth science...................       1,553       1,387       1,455
00.07   Mission communication services..         404         345         404
00.08   Academic programs...............         136         150         104
00.09   Aero-space technology...........       1,483       1,226       1,038
09.01 Reimbursable program..............         508         599         577
                                           ---------   ---------  ----------
10.00   Total new obligations...........       6,304       6,088       6,024
----------------------------------------------------------------------------

    Budgetary resources available for obligation:
21.40 Unobligated balance available, 
        start of year...................         508         401         566
22.00 New budget authority (gross)......       6,198       6,253       6,002
                                           ---------   ---------  ----------
23.90   Total budgetary resources 
          available for obligation......       6,706       6,654       6,568
23.95 Total new obligations.............      -6,304      -6,088      -6,024
24.40 Unobligated balance available, end 
        of year.........................         401         566         544
----------------------------------------------------------------------------

    New budget authority (gross), detail:
      Current:

40.00   Appropriation...................       5,690       5,654       5,425
      Permanent:

        Spending authority from 
            offsetting collections:
68.00     Offsetting collections (cash).         559         599         577
68.10     From Federal sources: Change 
            in receivables and unpaid, 
            unfilled orders.............         -51
                                           ---------   ---------  ----------
68.90       Spending authority from 
              offsetting collections 
              (total)...................         508         599         577
                                           ---------   ---------  ----------
70.00   Total new budget authority 
          (gross).......................       6,198       6,253       6,002
----------------------------------------------------------------------------

    Change in unpaid obligations:
      Unpaid obligations, start of year:

72.40   Obligated balance, start of year       3,222       2,997       2,620
72.95   From Federal sources: 
          Receivables and unpaid, 
          unfilled orders...............         305         254         254
                                           ---------   ---------  ----------
72.99     Total unpaid obligations, 
            start of year...............       3,527       3,251       2,874
73.10 Total new obligations.............       6,304       6,088       6,024
73.20 Total outlays (gross).............      -6,574      -6,465      -5,864
73.40 Adjustments in expired accounts...          -6
      Unpaid obligations, end of year:

74.40   Obligated balance, end of year..       2,997       2,620       2,781
74.95   From Federal sources: 
          Receivables and unpaid, 
          unfilled orders...............         254         254         254
                                           ---------   ---------  ----------
74.99     Total unpaid obligations, end 
            of year.....................       3,251       2,874       3,035
----------------------------------------------------------------------------

    Outlays (gross), detail:
86.90 Outlays from new current authority       2,861       2,550       2,447
86.93 Outlays from current balances.....       3,160       3,316       2,840
86.97 Outlays from new permanent 
        authority.......................         230         599         577
86.98 Outlays from permanent balances...         323
                                           ---------   ---------  ----------
87.00   Total outlays (gross)...........       6,574       6,465       5,864
----------------------------------------------------------------------------

    Offsets:
      Against gross budget authority and outlays:

        Offsetting collections (cash) 
            from:
88.40     Non-Federal sources...........         -38         -41         -41
88.45     Offsetting governmental 
            collections.................        -521        -558        -536
                                           ---------   ---------  ----------
88.90       Total, offsetting 
              collections (cash)........        -559        -599        -577
88.95 From Federal sources: Change in 
        receivables and unpaid, unfilled 
        orders..........................          51
----------------------------------------------------------------------------

    Net budget authority and outlays:
89.00 Budget authority..................       5,690       5,654       5,425
90.00 Outlays...........................       6,015       5,866       5,287
---------------------------------------------------------------------------

    This appropriation provides for the research and development 
activities of the National Aeronautics and Space Administration. Funds 
are included for the construction, maintenance, and operation of 
programmatic facilities. Space Science, Earth Science, Life and 
Microgravity Science, Aeronautics, and Space Transportation programs are 
included in the 21st Century Research Fund.

Performance Objectives

    Space Science.--The Space Science program seeks to answer 
fundamental questions concerning: the galaxy and the universe; the 
connection between the Sun, Earth and heliosphere; the origin and 
evolution of planetary systems; and, the origin and distribution of life 
in the universe. The Space Science program is comprised of a base 
program of research and development activities, including research and 
flight mission activities, and major space-based facilities.

    In 1998, the Space Science program produced many notable scientific 
accomplishments. Measurement of light from distant exploding stars led 
teams to conclude that the universe will expand forever at an increasing 
rate. This discovery was characterized by the editors of Science 
magazine, the journal of the American Association for the Advancement of 
Science, as the top scientific advance of 1998. The Rossi X-ray Timing 
Explorer (RXTE) discovered a new type of star, known as a magnetar, 
which generates extremely powerful magnetic fields. The Hubble Space 
Telescope (HST) continued to produce many discoveries, including the 
first potential direct image of an extrasolar planet, and, working with 
RXTE and the Beppo-Sax mission, detected the largest explosion since the 
Big Bang. The Keck telescope imaged the formation of a new solar system. 
Within our own solar system, the Mars Global Surveyor mission 
photographed portions of Mars with unprecedented clarity, revealing 
ancient riverbeds and numerous geological structures. The Lunar 
Prospector spacecraft detected the presence of water ice on the moon. 
This discovery has important implications for future exploration mission 
concepts. The Solar and Heliospheric Observatory produced spectacular 
images of comets plunging into the Sun, and also detected solar quakes. 
Also in the field of solar science, the Transition Region and Coronal 
Explorer produced the sharpest images to date of magnetic reconnections 
on the Sun. Near the end of FY 1998, and in early FY 1999, the New 
Millenium Deep Space-1 mission, the Submillimeter Wave Astronomy 
Satellite, the Mars Climate Orbiter, and the Mars Polar Lander were 
launched successfully. These launches both capped off a highly 
successful year and initiated a period in which nine Space Science 
missions will be launched over a seven-month period. Other missions to 
be launched in this period include the Stardust mission, the Wide Field 
Infrared Explorer, the Far Ultraviolet Spectroscopy Explorer, and the 
Advanced X-Ray Astrophysics Facility.

     To capitalize on these enormous successes during the past year, the 
NASA budget request for FY 2000 once again highlights Space Science. 
Space Science continues to focus on the Origins program and fundamental 
questions regarding the creation of the universe and planetary systems 
and the possibility of life on Earth. Planning continues for the 
deployment

[[Page 1054]]

of powerful telescopes to detect Earth-like planets beyond our solar 
system, for the 2003 launch of a mission to directly observe subsurface 
oceans on Europa, and for future missions to seek evidence of past or 
present life on Mars. The Space Science program is responsible for 
Agency-wide core technology development, and additional funding is 
provided in this program to enhance these Origins missions and enable 
other future missions through the Administration's IT initiative and 
other high-leverage technologies. These technologies will increase the 
return of the Space Science program and other NASA programs many fold 
through revolutionary capabilities in the areas of networking, 
intelligent systems, nanotechnology, communications, lighweight 
structures, miniaturization, mobility, and propulsion for robotic 
spacecraft and rovers.

     The Advanced X-ray Astrophysics Facility (AXAF) will be launched in 
April 1999. Development activities continue on the Relativity (Gravity 
Probe-B) mission, which is scheduled for launch in 2000. The Space 
Infrared Telescope Facility (SIRTF) initiated development in April 1998, 
with launch planned for December 2001. Development activities on the 
Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics (TIMED) 
mission continue in 1999, with launch planned in 2000. Development 
activities on the Stratospheric Observatory for Infrared Astronomy 
(SOFIA) continue as planned. The upgraded Hubble Space Telescope (HST) 
is providing new insights into our universe. Funding for HST continues 
to support operations, as well as preparation for the third servicing 
mission in 2000.

    In Explorer missions, development activities continue in the Far 
Ultraviolet Spectroscopy Explorer (FUSE), scheduled for launch in 1999. 
Development is also underway for the Microwave Anisotropy Probe (MAP) 
and Imager for Magnetosphere-to-Aurora Global Exploration (IMAGE) 
Medium-Class Explorer (MIDEX) missions. MAP will be launched in November 
2000, IMAGE in January 2000. Three Small (SMEX) missions started 
development in FY 1998: the High Energy Spectroscopic Imager (HESSI) is 
to launch in 2000; the Galaxy Evolution Explorer (GALEX) will launch in 
2001; and the Two Wide-Angle Neutral Atom Spectrometers (TWINS) has been 
selected as mission of opportunity, to be launched in 2002 and 2004. 
These missions emphasize reduced mission costs and accelerated launch 
schedules.

    The Mars Global Surveyor entered Mars orbit in September 1997, the 
Mars Climate Orbiter was launched in December 1998 and the Mars Polar 
Lander was launched in January 1999. Funds are requested for the 
development of future Mars missions to be launched in 2001 and beyond. 
The third Discovery-class mission, Lunar Prospector, launched in 1998, 
and has completed its primary mission. The fourth Discovery mission, 
Stardust, is on schedule for launch in February 1999. Two Discovery 
missions selected in 1997 are proceeding on schedule: the Comet Nucleus 
Tour (CONTOUR) will begin development in FY 2000 and will be launched in 
2002; the Genesis solar wind sample return mission has begun development 
and will be launched in 2001.

    The New Millenium program is providing flight demonstrations of 
critical new technologies which will reduce the mass and cost of future 
science and spacecraft subsystems, while maintaining or improving 
mission capabilities. The Deep Space-1 mission was launched in October 
1998 and has validated its technologies. The Deep Space-2 mission was 
launched along with the Mars Polar Lander in January 1999, and will 
arrive at Mars in December 1999.

    Life and Microgravity Science.--This program uses the microgravity 
environment of space to conduct basic and applied research to understand 
the effect of gravity on living systems and to conduct research in the 
areas of fluid physics, combustion science, fundamental physics 
materials science and biotechnology. In FY 1999, the program has flown 
one science mission (STS-95) on a Spacelab carrier with ISS precursor 
science experiments. STS-95 included commercially sponsored research as 
well as research on the effects of aging conducted with the National 
Institute on Aging. FY 1999 has also seen the beginning of ISS assembly. 
In FY 2000 the U.S. laboratory module for the ISS will be launched, 
which will allow initial Life and Microgravity hardware and experiments 
to be established aboard the ISS and will begin a new era of research. 
As assembly of the ISS continues to advance, ISS Crew Health Care System 
(CHECS) components will be utilized to provide on-orbit medical, 
environmental, and countermeasure capabilities for all ISS crew members. 
In early FY 2001, the program will fly a dedicated Space Shuttle 
research mission which will extend previous Space Shuttle research 
results and help the program as well as the community to prepare for 
increasing research operations on the ISS.

    Earth Science.--The purpose of NASA's Earth Science (ES) enterprise 
is to understand the total Earth system and the effects of natural and 
human-induced changes on the global environment. ES is pioneering the 
new interdisciplinary field of research called Earth system science, 
which recognizes that the Earth's land surface, oceans, atmosphere, ice 
sheets and biota are both dynamic and highly interactive. Earth system 
science is an area of research with the potential for immense benefit to 
the nation, yielding new knowledge and tools for weather forecasting, 
agriculture, urban and land use planning, and other areas of economic 
and environmental importance. In concert with other agencies and the 
global research community, ES is providing the scientific foundation 
needed for the complex policy choices that lie ahead on the road to 
sustainable development. ES has established three broad goals to fulfill 
its purpose: (1) expand scientific knowledge of the Earth system using 
NASA's unique capabilities from the vantage points of space, aircraft 
and in situ platforms; (2) disseminate information about the Earth 
system; and, (3) enable productive use of ES science and technology in 
the public and private sectors.

    In 1998, the Earth Science program continued to make great progress 
analyzing data from significant scientific events detected from orbiting 
spacecraft and scientific campaigns. Multiple spacecraft and instruments 
have played an important role in predicting the El Nino event and will 
continue to track a possible La Nina. Images derived from the TOPEX-
Poseidon satellite allowed the public to watch the progression of El 
Nino across the Pacific Ocean. Radarsat brought the first detailed radar 
map of Antarctica. A cooperative mission with Japan, the Tropical 
Rainfall Measuring Mission (TRMM) was launched and has proven to be 
valuable for both scientific research and development of new weather 
forecasting capabilities. ES has been monitoring fires worldwide 
including those in Indonesia, Mexico and Russia and the results are 
available via the Internet. The Sea-viewing Wide Field-of-view Sensor 
(SeaWiFS), which became fully operational as part of a data purchase 
from the private sector, provided important data on coastal up-welling 
in the Northwest, Argentina, and South Africa related to dramatic 
plankton blooms, a critical food source for fish. These data are used to 
understand the role of oceans in removing carbon dioxide from the 
atmosphere and the ocean's productivity.

    The Earth Observing System (EOS), the centerpiece of Earth Science, 
is a program of multiple spacecraft, supporting technology and 
interdisciplinary science investigations to provide a long-term data set 
of key parameters needed to understand global climate change. The first 
EOS satellite launches will begin in 1999 with the launches of Landsat-
7, AM-1, and QuikSCAT. EOS PM-1 and Chemistry are on schedule

[[Page 1055]]

to launch in 2000 and 2002 respectively. Preceding the EOS are a number 
of individual satellite and Shuttle-based missions which are helping to 
reveal basic processes.

    Complementing EOS, under the Earth Probes Program, will be a series 
of small, rapid development Earth System Science Pathfinder (ESSP) 
missions to study emerging science questions and to use innovative 
measurement techniques in support of EOS. The first two ESSP missions, 
Vegetation Canopy Lidar (VCL) and Gravity Recovery and Climate 
Experiment (GRACE), are scheduled for launch in 2000 and 2001, 
respectively. The next ESSP missions were selected in December 1998. 
NASA has chosen for development one primary and two alternate small 
spacecraft missions. The Pathfinder Instruments for Cloud and Aerosol 
Spaceborne Observations - Climatologie Etendue des Nuages et des 
Aerosols (PICASSO-CENA) mission, led by NASA's Langley Research Center, 
will be the next ESSP mission scheduled for launch in 2003.

    Data from Earth Science missions, both current and future, will be 
captured, processed into useful information, and broadly distributed by 
the EOS Data information System (EOSDIS). EOSDIS will ensure that data 
from these diverse missions remain available in active archives for use 
by current and future scientists. Since these data are expected to find 
uses well beyond the Earth Science research community, EOSDIS will 
ultimately be accessible by environmental decision-makers, resource 
managers, commercial firms, social scientists and the general academic 
community, educators, state and local government--anyone who wants the 
information.

     The ES science program is essential to the discovery of new 
concepts and to the design of future missions. ES research is 
coordinated through the U.S. Global Change Research Program (USGCRP), 
the Committee on the Environment and Natural Resources (CENR) and its 
Subcommittee on Global Change Research, and the various boards and 
committees at the National Academy of Sciences.

    Aero-Space Technology.--The mission of this Enterprise is to pioneer 
the identification, development, verification, transfer, application, 
and commercialization of high-payoff aerospace technologies. Through its 
research and technology accomplishments, Aero-Space Technology promotes 
economic growth and national security through a safe, efficient national 
aviation system and affordable, reliable space transportation. To meet 
this challenge, the Enterprise has established three pillars for 
success. Within these three pillars, a set of ten objectives, each with 
its own roadmap, has been defined to address current and future National 
needs. The technologies associated with these objectives are pre-
competitive, long-term, high-risk research endeavors with high-payoff in 
terms of market growth, safety, low acquisition cost, consumer 
affordability and cleaner environment. The goals of this Enterprise 
directly support national policy in Aero-Space, documented in ``Goals 
for a National Partnership in Aeronautics Research and Technology'' and 
the 1994 National Space Transportation Policy.

    The first Pillar, Global Civil Aviation, addresses the fundamental, 
systemic issues in the aviation system to ensure continued growth and 
development appropriate to the needs of the national and global 
economies. These systemic issues--safety, capacity, environmental 
compatibility, and affordability--cut across markets including large 
subsonic civil transports, air cargo, commuter and general aviation, and 
rotorcraft. The second Pillar, Revolutionary Technology Leaps, will 
revolutionize air travel and the way in which aircraft are designed, 
built, and operated, and addresses the challenges in General Aviation, 
Design Tools, and Experimental Planes. The Third Pillar, Access to 
Space, will enable greater commercial potential of space and the 
expansion of space research and exploration by significantly reducing 
the cost of space transportation systems while improving reliability, 
operability, responsiveness, and safety.

    The accomplishments over the past year provide a foundation for 
longer term technology development to address national needs. Great 
strides have been made in Aviation Safety. In FY 1998, non-destuctive 
inspection prototypes that locate cracks, corrosion and disbonds in 
aircraft fuselages were demonstrated and the technology transferred to 
industry. An airborne coherent Light Detection And Ranging (LIDAR) 
system for advanced in-flight measurements demonstrated its capability 
to precisely detect the turbulence level one kilometer ahead of the 
airplane. The Aviation Safety program in FY 2000 will demonstrate 
technologies for a real time graphical display of weather in the 
cockpit.

    NASA has made similar strides toward other aviation goals. In FY 
1998, innovative concepts were demonstrated that showed promise in 
significantly reducing aviation noise. Advanced low NOx combustor 
concepts demonstrated a 50% reduction in NOx in flame tube tests, and 
showed potential for achieving the 70% reduction goal. The Environmental 
Research Aircraft & Remote Sensor Technology (ERAST) project set a world 
record for solar powered aircraft by reaching an altitude of 80,200 
feet. A solar powered RPV, with the capability of reaching 100,000 feet, 
will be flight tested in FY 2000.

    The Reduced Seat cost element of the AST Program will be completed 
in FY 1999 with the testing of a semi-span advanced composite wing to 
verify weight (25 percent reduction) and structural performance goals, 
and the fabrication of wing cover panels to verify the cost reduction 
goal (20 percent reduction). The Capacity Program demonstrated its 
Aircraft Vortex Spacing System (AVOSS) in an initial deployment at 
Dallas Fort Worth airport. Results showed that significant capacity 
gains were possible with this system under various weather conditions. 
Building on previous technology development efforts, the final 
demonstration of the Terminal Productivity element will occur in FY 2000 
and is expected to demonstrate the potential for a 12 to 15% increase in 
airport throughput. Also in FY 2000, the Advanced Air Transportation 
element is planned to demonstrate decision support tools that have the 
potential for a 30% increase in throughput for the extended terminal 
area.

    The Reusable Launch Vehicle (RLV) Program, through the X-33, X-34 
and new Future-X Pathfinder Programs, continues to develop, apply and 
demonstrate new technologies that significantly advance the ability of 
the launch vehicle industry to initiate commercially viable reusable 
launch systems. The X-33 and X-34 have completed major hardware 
fabrication and test milestones and are scheduled to begin flight tests 
in 1999. The Future-X Program selected the first of its planned series 
of flight demonstrators. The first Future-X demonstrator complements 
existing x-vehicles by investigating the orbit-to-Earth and orbital 
operations regimes of the flight spectrum, and will begin flight tests 
in 2000.

    The Advanced Space Transportation Program (ASTP) focuses on advanced 
technology across a broad front in order to reduce costs beyond the 
targets of the immediate RLV program goals. The ASTP includes a base of 
core technology investments as well as technology investments unique to 
focused program efforts. In FY 1999, the ion engine aboard Deep Space-1 
was activated and continues to operate in a nominal fashion. Industry-
led Future Launch Architecture studies are currently underway to support 
an end-of-the decade decision on lower cost civil space transportation 
architectures as called for in the National Space Transportation Policy. 
Funds are provided in the Future Space Launch budget line for the years 
beyond FY 2000 to pursue the decision.

    The Commercial Technology Program's focus in FY 1998 was continued 
investment of 10-15 percent of the NASA R&D budget in commercial 
partnerships with industry. Based on experience to date, these 
commercial partnerships are expected to increase the return on the 
government's R&D in

[[Page 1056]]

vestment, allowing NASA to do more with limited funds, and strengthening 
the international competitiveness of key industry sectors. In FY 1999 
and 2000, the program will continue to emphasize increasing commercial 
partnerships with industry and continue to refine and expand a 
technology and partnership database.

    Mission Communication Services.--The primary goal of this 
operational program is to provide highly reliable, cost-effective space 
operations services in support of NASA's science and aeronautics 
programs. In addition, support is provided to interagency, 
international, and commercial space-faring enterprises on a reimbursable 
basis. The mission communication services program is composed of ground 
networks, space network services, and mission control systems, as well 
as Agency radio spectrum management and data standards coordination. 
Services are provided to a large number of NASA missions, including 
planetary and interplanetary missions; human space flight missions; 
near-earth and earth orbiting missions; and sub-orbital and aeronautical 
flight tests. On October 1, 1998 a Consolidated Space Operations 
Contract (CSOC) was competitively awarded to Lockheed-Martin Space 
Operations Company. This contract is designed to maximize space 
operations resources by reducing systems overlap and duplication.

    Academic Programs.--The goal of this program is to promote 
excellence in America's education system through enhancing and expanding 
scientific and technological competence. NASA's education programs span 
the elementary through graduate levels and are directed at both students 
and faculty. The goal of the Minority University Research Program is to 
expand opportunities for talented students from underrepresented groups 
who are pursuing degrees in science and engineering and to strengthen 
the research capabilities of minority universities and colleges. The 
range of activities conducted under this program will continue to 
capture the interest of all students in science and technology, develop 
talented students at the undergraduate and graduate levels, provide 
research opportunities for students and faculty members at NASA centers, 
and strengthen and enhance the research capabilities of the nation's 
colleges and universities. 

               Object Classification (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0110-0-1-999      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

      Direct obligations:

22.0    Transportation of things........           5           5           5
23.1    Rental payments to GSA..........           1           1           1
23.3    Communications, utilities, and 
          miscellaneous charges.........          64          61          60
24.0    Printing and reproduction.......           6           6           6
25.1    Advisory and assistance services         390         369         366
25.2    Other services..................       1,164       1,102       1,093
25.3    Purchases of goods and services 
          from Government accounts......         265         251         249
25.4    Operation and maintenance of 
          facilities....................         134         127         126
25.5    Research and development 
          contracts.....................       2,421       2,293       2,275
25.7    Operation and maintenance of 
          equipment.....................         111         105         104
26.0    Supplies and materials..........          52          49          49
31.0    Equipment.......................         165         156         155
32.0    Land and structures.............          24          23          23
41.0    Grants, subsidies, and 
          contributions.................         994         941         935
                                           ---------   ---------  ----------
99.0      Subtotal, direct obligations..       5,796       5,489       5,447
99.0  Reimbursable obligations..........         508         599         577
                                           ---------   ---------  ----------
99.9    Total new obligations...........       6,304       6,088       6,024
---------------------------------------------------------------------------

                                

                             Mission Support

    For necessary expenses, not otherwise provided for, in carrying out 
mission support for human space flight programs and science, 
aeronautical, and technology programs, including research operations and 
support; space communications activities including operations, 
production and services; maintenance; construction of facilities 
including repair, rehabilitation, and modification of facilities, minor 
construction of new facilities and additions to existing facilities, 
facility planning and design, environmental compliance and restoration, 
and acquisition or condemnation of real property, as authorized by law; 
program management; personnel and related costs, including uniforms or 
allowances therefor, as authorized by 5 U.S.C. 5901-5902; travel 
expenses; purchase, lease, charter, maintenance, and operation of 
mission and administrative aircraft; not to exceed $35,000 for official 
reception and representation expenses; and purchase (not to exceed 33 
for replacement only) and hire of passenger motor vehicles, 
[$2,511,100,000] $2,494,900,000, to remain available until September 30, 
[2000] 2001. (Departments of Veterans Affairs and Housing and Urban 
Development, and Independent Agencies Appropriations Act, 1999.)

               Program and Financing (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0112-0-1-999      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

    Obligations by program activity:
      Direct program:

00.01   Safety, reliability and quality 
          assurance.....................          36          35          44
00.02   Space communication services....         204         169          99
00.03   Research and program management.       2,059       2,105       2,180
00.04   Construction of facilities......         155         168         177
                                           ---------   ---------  ----------
01.00   Total direct program............       2,454       2,477       2,500
09.01 Reimbursable program..............          91         131         121
                                           ---------   ---------  ----------
10.00   Total new obligations...........       2,545       2,608       2,621
----------------------------------------------------------------------------

    Budgetary resources available for obligation:
21.40 Unobligated balance available, 
        start of year...................         160          85         119
22.00 New budget authority (gross)......       2,471       2,642       2,616
                                           ---------   ---------  ----------
23.90   Total budgetary resources 
          available for obligation......       2,631       2,727       2,735
23.95 Total new obligations.............      -2,545      -2,608      -2,621
23.98 Unobligated balance expiring......          -1
24.40 Unobligated balance available, end 
        of year.........................          85         119         114
----------------------------------------------------------------------------

    New budget authority (gross), detail:
      Current:

40.00   Appropriation...................       2,433       2,511       2,495
41.00   Transferred to other accounts...         -53
                                           ---------   ---------  ----------
43.00     Appropriation (total).........       2,380       2,511       2,495
      Permanent:

        Spending authority from 
            offsetting collections:
68.00     Offsetting collections (cash).         131         131         121
68.10     From Federal sources: Change 
            in receivables and unpaid, 
            unfilled orders.............         -40
                                           ---------   ---------  ----------
68.90       Spending authority from 
              offsetting collections 
              (total)...................          91         131         121
                                           ---------   ---------  ----------
70.00   Total new budget authority 
          (gross).......................       2,471       2,642       2,616
----------------------------------------------------------------------------

    Change in unpaid obligations:
      Unpaid obligations, start of year:

72.40   Obligated balance, start of year         526         487         378
72.95   From Federal sources: 
          Receivables and unpaid, 
          unfilled orders...............         106          66          66
                                           ---------   ---------  ----------
72.99     Total unpaid obligations, 
            start of year...............         632         553         444
73.10 Total new obligations.............       2,545       2,608       2,621
73.20 Total outlays (gross).............      -2,614      -2,717      -2,541
73.40 Adjustments in expired accounts...         -10
      Unpaid obligations, end of year:

74.40   Obligated balance, end of year..         487         378         458
74.95   From Federal sources: 
          Receivables and unpaid, 
          unfilled orders...............          66          66          66
                                           ---------   ---------  ----------
74.99     Total unpaid obligations, end 
            of year.....................         553         444         524
----------------------------------------------------------------------------

    Outlays (gross), detail:
86.90 Outlays from new current authority       1,930       2,006       1,994
86.93 Outlays from current balances.....         588         580         427
86.97 Outlays from new permanent 
        authority.......................          55         131         121
86.98 Outlays from permanent balances...          41
                                           ---------   ---------  ----------
87.00   Total outlays (gross)...........       2,614       2,717       2,541
----------------------------------------------------------------------------

[[Page 1057]]



    Offsets:
      Against gross budget authority and outlays:

        Offsetting collections (cash) 
            from:
88.40     Non-Federal sources...........         -23         -29         -24
88.45     Offsetting governmental 
            collections.................        -108        -102         -97
                                           ---------   ---------  ----------
88.90       Total, offsetting 
              collections (cash)........        -131        -131        -121
88.95 From Federal sources: Change in 
        receivables and unpaid, unfilled 
        orders..........................          40
----------------------------------------------------------------------------

    Net budget authority and outlays:
89.00 Budget authority..................       2,380       2,511       2,495
90.00 Outlays...........................       2,483       2,586       2,420
---------------------------------------------------------------------------

    This appropriation provides funding for mission support and 
includes: safety, mission assurance, engineering and advanced concepts 
activities supporting agency programs; space communication services for 
NASA programs; salaries and related expenses in support of research in 
NASA field installations; design, repair, rehabilitation and 
modification of institutional facilities and construction of new 
institutional facilities; and other operations activities supporting 
conduct of agency programs.

Performance Objectives

    Safety, Mission Assurance, Engineering, and Advanced Concepts.--The 
goal of this program is to invest in the safety and success of NASA 
missions by assuring that sound and robust policies, processes, and 
tools for safety, reliability, quality assurance, and engineering 
disciplines are in place and applied throughout NASA. The program also 
examines long-term technology requirements for NASA's strategic 
objectives.

    Space Communication Services.--The primary goal is to provide highly 
reliable, cost-effective space operations services in support of NASA's 
science and aeronautics programs. In addition, support is provided to 
interagency, international, and commercial space-faring enterprises on a 
reimbursable basis. The space communications services program is 
composed of Space Network and telecommunications programs. Services are 
provided to human space flight missions and low earth-orbital spacecraft 
compatible with the Tracking and Data Relay Satellite System (TDRSS); to 
expendable launch vehicles and research aircraft; and for 
telecommunications interconnectivity among NASA, contractor and 
investigator science facilities around the world. Development of a 
remote ground terminal at Guam which extends network capability, by 
providing coverage of the zone of exclusion, was completed in FY 1998. 
Development of the TDRSS Replenishment Spacecraft is ongoing, with the 
first satellite scheduled for launch late in FY 1999. Management and 
responsibility for all Wide Area Network data distribution services for 
all manned, earth orbiting and deep space missions and NASA 
administrative communications will be outsourced by CSOC late in FY 
1999.

    Research and Program Management.--This activity provides for the 
salaries, travel support, other personnel expenses of the entire NASA 
civil service workforce, and includes vital support to the physical 
plant at the Centers and at NASA Headquarters.

    Construction of Facilities.--This activity provides for facility 
construction activities to preserve NASA's core infrastructure; 
environmental compliance and restoration activities, design of 
facilities projects, and advanced planning related to future facilities 
needs. In 1998-2000, activities in support of discrete projects to 
repair and modernize the basic infrastructure and institutional 
facilities at NASA centers will continue, as well as activities in 
support of environmental compliance and restoration requirements.

               Object Classification (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0112-0-1-999      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

      Direct obligations:

        Personnel compensation:
11.1      Full-time permanent...........       1,194       1,219       1,254
11.3      Other than full-time permanent          30          31          33
11.5      Other personnel compensation..          23          24          26
11.8      Special personal services 
            payments....................           8           8           8
                                           ---------   ---------  ----------
11.9        Total personnel compensation       1,255       1,282       1,321
12.1    Civilian personnel benefits.....         264         271         274
13.0    Benefits for former personnel...          30          13          11
21.0    Travel and transportation of 
          persons.......................          45          45          45
22.0    Transportation of things........           5           5           5
23.1    Rental payments to GSA..........          15          15          15
23.3    Communications, utilities, and 
          miscellaneous charges.........          59          60          58
24.0    Printing and reproduction.......           4           4           4
25.1    Advisory and assistance services          18          19          18
25.2    Other services..................         269         269         266
25.3    Purchases of goods and services 
          from Government accounts......          27          28          27
25.4    Operation and maintenance of 
          facilities....................          49          49          48
25.5    Research and development 
          contracts.....................         140         141         138
25.6    Medical care....................           2           2           2
25.7    Operation and maintenance of 
          equipment.....................          95          96          93
26.0    Supplies and materials..........          21          21          21
31.0    Equipment.......................          15          15          15
32.0    Land and structures.............         135         136         133
41.0    Grants, subsidies, and 
          contributions.................           6           6           6
                                           ---------   ---------  ----------
99.0      Subtotal, direct obligations..       2,454       2,477       2,500
99.0  Reimbursable obligations..........          91         131         121
                                           ---------   ---------  ----------
99.9    Total new obligations...........       2,545       2,608       2,621
---------------------------------------------------------------------------

                              Personnel Summary

----------------------------------------------------------------------------
Identification code 80-0112-0-1-999      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------
    Direct:
1001  Total compensable workyears: Full-
        time equivalent employment......      18,839      18,460      17,885
    Reimbursable:
2001  Total compensable workyears: Full-
        time equivalent employment......          85          85          85
---------------------------------------------------------------------------

                                

                        Research and Development

               Program and Financing (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0108-0-1-999      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

    New budget authority (gross), detail:
      Spending authority from offsetting 
          collections:

68.00   Offsetting collections (cash)...           5
68.10   From Federal sources: Change in 
          receivables and unpaid, 
          unfilled orders...............          -5
                                           ---------   ---------  ----------
68.90     Spending authority from 
            offsetting collections 
            (total).....................
----------------------------------------------------------------------------

    Change in unpaid obligations:
      Unpaid obligations, start of year:

72.40   Obligated balance, start of year         104          51          31
72.95   From Federal sources: 
          Receivables and unpaid, 
          unfilled orders...............          34          29          29
                                           ---------   ---------  ----------
72.99     Total unpaid obligations, 
            start of year...............         138          80          60
73.20 Total outlays (gross).............         -45         -20         -44
73.40 Adjustments in expired accounts...         -13
      Unpaid obligations, end of year:

74.40   Obligated balance, end of year..          51          31         -13
74.95   From Federal sources: 
          Receivables and unpaid, 
          unfilled orders...............          29          29          29
                                           ---------   ---------  ----------
74.99     Total unpaid obligations, end 
            of year.....................          80          60          16
----------------------------------------------------------------------------

    Outlays (gross), detail:
86.93 Outlays from current balances.....          45          20          44
----------------------------------------------------------------------------

[[Page 1058]]



    Offsets:
      Against gross budget authority and outlays:

88.45   Offsetting collections (cash) 
          from: Offsetting governmental 
          collections...................          -5
88.95 From Federal sources: Change in 
        receivables and unpaid, unfilled 
        orders..........................           5
----------------------------------------------------------------------------

    Net budget authority and outlays:
89.00 Budget authority..................
90.00 Outlays...........................          40          20          44
---------------------------------------------------------------------------

    Since FY 1995 NASA's Research and Development activities have been 
performed in Human Space Flight; Science, Aeronautics and Technology; 
and Mission Support. This account shows spending from balances prior to 
the account restructuring.

                                

              Space Flight, Control and Data Communications

               Program and Financing (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0105-0-1-252      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

    Change in unpaid obligations:
      Unpaid obligations, start of year:

72.40   Obligated balance, start of year          56          20          12
72.95   From Federal sources: 
          Receivables and unpaid, 
          unfilled orders...............           2           2
                                           ---------   ---------  ----------
72.99     Total unpaid obligations, 
            start of year...............          58          22          12
73.20 Total outlays (gross).............         -34         -10         -12
73.40 Adjustments in expired accounts...          -2
      Unpaid obligations, end of year:

74.40   Obligated balance, end of year..          20          12
74.95   From Federal sources: 
          Receivables and unpaid, 
          unfilled orders...............           2
                                           ---------   ---------  ----------
74.99     Total unpaid obligations, end 
            of year.....................          22          12
----------------------------------------------------------------------------

    Outlays (gross), detail:
86.93 Outlays from current balances.....          34          10          12
----------------------------------------------------------------------------

    Net budget authority and outlays:
89.00 Budget authority..................
90.00 Outlays...........................          34          10          12
---------------------------------------------------------------------------

    Since FY 1995 NASA's Space Flight, Control and Data Communications 
activities have been performed in Human Space Flight; Science, 
Aeronautics and Technology; and Mission Support. This account shows 
spending from balances prior to the account restructuring.

                                

                       Construction of Facilities

               Program and Financing (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0107-0-1-999      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

    Obligations by program activity:
00.01 Supporting activity...............           4           9
00.02 Space transportation..............           4          10
00.03 Mission to Planet Earth...........           1
00.04 Aeronautical research and 
        technology......................          18          10
                                           ---------   ---------  ----------
10.00   Total new obligations...........          27          29
----------------------------------------------------------------------------

    Budgetary resources available for obligation:
21.40 Unobligated balance available, 
        start of year...................          56          29
23.95 Total new obligations.............         -27         -29
24.40 Unobligated balance available, end 
        of year.........................          29
----------------------------------------------------------------------------

    Change in unpaid obligations:
72.40 Unpaid obligations, start of year: 
        Obligated balance, start of year          68          30          29
73.10 Total new obligations.............          27          29
73.20 Total outlays (gross).............         -64         -14         -44
73.40 Adjustments in expired accounts...          -1         -16          15
74.40 Unpaid obligations, end of year: 
        Obligated balance, end of year..          30          29
----------------------------------------------------------------------------

    Outlays (gross), detail:
86.93 Outlays from current balances.....          64          14          44
----------------------------------------------------------------------------

    Net budget authority and outlays:
89.00 Budget authority..................
90.00 Outlays...........................          64          14          44
----------------------------------------------------------------------------

    Memorandum (non-add) entries:
92.01 Total investments, start of year: 
        U.S. securities: Par value......           2
92.02 Total investments, end of year: 
        U.S. securities: Par value......
---------------------------------------------------------------------------

    Since FY 1995 NASA's Construction of Facilities activities have been 
performed in Human Space Flight; Science, Aeronautics and Technology; 
and Mission Support. This account shows spending from balances prior to 
the account restructuring.

               Object Classification (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0107-0-1-999      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------
25.2  Other services....................           2           1
25.4  Operation and maintenance of 
        facilities......................           3           3
32.0  Land and structures...............          22          25
                                           ---------   ---------  ----------
99.9    Total new obligations...........          27          29
---------------------------------------------------------------------------

                                

                     Research and Program Management

               Program and Financing (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0103-0-1-999      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

    Change in unpaid obligations:
72.40 Unpaid obligations, start of year: 
        Obligated balance, start of year           1           1
74.40 Unpaid obligations, end of year: 
        Obligated balance, end of year..           1
----------------------------------------------------------------------------

    Net budget authority and outlays:
89.00 Budget authority..................
90.00 Outlays...........................
---------------------------------------------------------------------------

    Since FY 1995 NASA's Research and Program Management activities have 
been performed in Mission Support. This account shows spending from 
balances prior to the account restructuring.

                                

                       Office of Inspector General

    For necessary expenses of the Office of Inspector General in 
carrying out the Inspector General Act of 1978, as amended, 
[$20,000,000] $20,800,000. (Departments of Veterans Affairs and Housing 
and Urban Development, and Independent Agencies Appropriations Act, 
1999.)

               Program and Financing (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0109-0-1-252      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

    Obligations by program activity:
10.00 Total obligations.................          18          20          21
----------------------------------------------------------------------------

    Budgetary resources available for obligation:
22.00 New budget authority (gross)......          18          20          21
23.95 Total new obligations.............         -18         -20         -21
----------------------------------------------------------------------------

[[Page 1059]]



    New budget authority (gross), detail:
40.00 Appropriation.....................          18          20          21
----------------------------------------------------------------------------

    Change in unpaid obligations:
72.40 Unpaid obligations, start of year: 
        Obligated balance, start of year           2           2           2
73.10 Total new obligations.............          18          20          21
73.20 Total outlays (gross).............         -18         -20         -21
74.40 Unpaid obligations, end of year: 
        Obligated balance, end of year..           2           2           2
----------------------------------------------------------------------------

    Outlays (gross), detail:
86.90 Outlays from new current authority          16          18          18
86.93 Outlays from current balances.....           2           2           2
                                           ---------   ---------  ----------
87.00   Total outlays (gross)...........          18          20          21
----------------------------------------------------------------------------

    Net budget authority and outlays:
89.00 Budget authority..................          18          20          21
90.00 Outlays...........................          18          20          21
---------------------------------------------------------------------------

    The mission of the Office of Inspector General is to conduct audits 
and investigations of agency activities. The Inspector General keeps the 
Administrator informed of problems and deficiencies in agency programs 
and operations.

               Object Classification (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-0109-0-1-252      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------
11.1  Personnel compensation: Full-time 
        permanent.......................          13          15          16
12.1  Civilian personnel benefits.......           3           3           3
21.0  Travel and transportation of 
        persons.........................           1           2           2
25.2  Other services....................           1
                                           ---------   ---------  ----------
99.9    Total new obligations...........          18          20          21
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                              Personnel Summary

----------------------------------------------------------------------------
Identification code 80-0109-0-1-252      1998 actual   1999 est.   2000 est.
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1001  Total compensable workyears: Full-
        time equivalent employment......         185         210         210
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                               Trust Funds

           Science, Space, and Technology Education Trust Fund

              Unavailable Collections (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-8978-0-7-503      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------
    Balance, start of year:
01.99 Balance, start of year............
    Receipts:
02.01 Earnings on investments; Science, 
        Space and Technology Education, 
        Trust Fund......................           1           1           1
    Appropriation:
05.01 Science, space, and technology 
        education trust fund............          -1          -1          -1
07.99 Total balance, end of year........
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               Program and Financing (in millions of dollars)

----------------------------------------------------------------------------
Identification code 80-8978-0-7-503      1998 actual   1999 est.   2000 est.
----------------------------------------------------------------------------

    Obligations by program activity:
10.00 Total obligations (object class 
        41.0)...........................           1
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    Budgetary resources available for obligation:
21.40 Unobligated balance available, 
        start of year...................          18          18          18
22.00 New budget authority (gross)......           1           1           1
                                           ---------   ---------  ----------
23.90   Total budgetary resources 
          available for obligation......          19          19          19
23.95 Total new obligations.............          -1
24.40 Unobligated balance available, end 
        of year.........................          18          18          18
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    New budget authority (gross), detail:
60.27 Appropriation (trust fund, 
        indefinite).....................           1           1           1
----------------------------------------------------------------------------

    Change in unpaid obligations:
73.10 Total new obligations.............           1
73.20 Total outlays (gross).............          -1          -1          -1
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    Outlays (gross), detail:
86.97 Outlays from new permanent 
        authority.......................           1           1           1
----------------------------------------------------------------------------

    Net budget authority and outlays:
89.00 Budget authority..................           1           1           1
90.00 Outlays...........................           1           1           1
----------------------------------------------------------------------------

    Memorandum (non-add) entries:
92.01 Total investments, start of year: 
        U.S. securities: Par value......          16          17          17
92.02 Total investments, end of year: 
        U.S. securities: Par value......          17          17          17
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                        Administrative Provisions

    Notwithstanding the limitation on the availability of funds 
appropriated for ``Human space flight'', ``Science, aeronautics and 
technology'', or ``Mission support'' by this appropriations Act, when 
any activity has been initiated by the incurrence of obligations for 
construction of facilities as authorized by law, such amount available 
for such activity shall remain available until expended. This provision 
does not apply to the amounts appropriated in ``Mission support'' 
pursuant to the authorization for repair, rehabilitation and 
modification of facilities, minor construction of new facilities and 
additions to existing facilities, and facility planning and design.
    Notwithstanding the limitation on the availability of funds 
appropriated for ``Human space flight'', ``Science, aeronautics and 
technology'', or ``Mission support'' by this appropriations Act, the 
amounts appropriated for construction of facilities shall remain 
available until September 30, [2001] 2002.
    Notwithstanding the limitation on the availability of funds 
appropriated for ``Mission support'' and ``Office of Inspector 
General'', amounts made available by this Act for personnel and related 
costs and travel expenses of the National Aeronautics and Space 
Administration shall remain available until September 30, [1999] 2000 
and may be used to enter into contracts for training, investigations, 
costs associated with personnel relocation, and for other services, to 
be provided during the next fiscal year.
    [NASA shall develop a revised appropriation structure for submission 
in the fiscal year 2000 budget request consisting of five appropriations 
accounts (International Space Station; Launch Vehicles and Payload 
Operations; Science, Aeronautics and Technology; Mission Support; and 
Office of Inspector General).]
    NASA shall develop a revised appropriation account structure for 
submission in the fiscal year 2001 budget request consisting of the 
``Human Space Flight'' account; the ``Science, Aeronautics, and 
Technology'' account; and the ``Office of the Inspector General'' 
account. The accounts shall each include the planned full costs (direct 
and indirect costs) of NASA's related activities and allow NASA to shift 
civil service salaries, benefits and support among accounts, as 
required, for the safe, timely, and successful accomplishment of NASA 
missions. (Departments of Veterans Affairs and Housing and Urban 
Development, and Independent Agencies Appropriations Act, 1999.)