[Federal Register Volume 66, Number 46 (Thursday, March 8, 2001)]
[Notices]
[Pages 13916-13917]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 01-5700]


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DEPARTMENT OF DEFENSE

Department of the Air Force


Interface Control Document (ICD) Configuration Management 
Activities

AGENCY: Department of the Air Force, DoD.

ACTION: Notice and Request for Review and Comment.

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SUMMARY: This notice informs the public that the NAVSTAR GPS Joint 
Program Office (JPO) proposes to revise ICD-GPS-200, NAVSTAR GPS Space 
Segment/Navigation User Interface, for the following items: (1) Removal 
of all Letters of Exception (LOEs) and incorporation of contents of 
technical LOEs into the text of ICD-GPS-200; (2) Update of Coordinated 
Universal Time as maintained by the United States Naval Observatory 
(UTC (USNO)) time transfer accuracy; (3) Clarification of applicable 
UTC/GPS-time relationship; (4) Clarification of Table 20-VI. These 
proposed change items are described in draft Proposed Interface 
Revision Notice (PIRN), PIRN-200C-005. The draft PIRN can be reviewed 
at the following web site: http://www.gpsnavstar.com. Select the ``GPS 
Public'' tab, then select ``DRAFT-PIRN-200C-005 (Public) (PDF).'' This 
notice seeks comments on the changes presented in the draft PIRN.

ADDRESSES: Submit comments to SMC/CZER, 2435 Vela Way, Suite 1613, El 
Segundo, CA 90245-5500, ATTN: First Lieutenant Reginald C. Victoria. A 
comment matrix is provided for your convenience at the web site and is 
the preferred method of comment submittal. Comments may be submitted to 
the following e-mail address: [email protected]. Comments may also 
be sent by fax to (310) 363-6387.

DATES: The suspense date for comment submittal is April 20, 2001.

FOR FURTHER INFORMATION CONTACT: Capt. Eric Y. Moore, Configuration 
Management Processes Coordinator, (310) 363-5117, or First Lieutenant 
Reginald C. Victoria, ICD-GPS-200C Point of Contact, (310) 363-6329, 
GPS

[[Page 13917]]

JPO System Engineering Division, address above.

SUPPLEMENTARY INFORMATION:

Background

    The Global Positioning System employs a constellation of 24 
satellites to provide continuously transmitted positioning/navigation 
signals for use with appropriately configured GPS user equipment. The 
proposed change applies to the interface control document that 
describes these signals. The civilian and military communities employ 
the Global Positioning System. All comments and their resolutions will 
be posted to the web site.

Janet A. Long,
Air Force Federal Register Liaison Officer.
[FR Doc. 01-5700 Filed 3-8-01; 8:45 am]
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