[Federal Register Volume 69, Number 42 (Wednesday, March 3, 2004)]
[Notices]
[Pages 10003-10004]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 04-4667]


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DEPARTMENT OF DEFENSE

Department of the Air Force


Request for Public Review and Comment of Changes to the Navstar 
GPS Space Segment/Navigation User Segment Interface Control Document 
(ICD)

AGENCY: Department of the Air Force, DoD.

ACTION: Notice and request for review/comment of changes to ICD-GPS-
200C.

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SUMMARY: This notice informs the public that the Global Positioning 
System (GPS) Joint Program Office (JPO) proposes to revise ICD-GPS-200, 
Navstar GPS Space Segment / Navigation User Interfaces. This proposal 
changes the document identifier from ICD-GPS-200 to Interface 
Specification (IS)-GPS-200. In addition, this revision will increment 
the revision letter from C to D, resulting in IS-GPS-200 Revision D. 
One of the main subjects of this revision effort is an introduction of 
new Improved Clock & Ephemeris (ICE) navigation message that will be 
broadcast with L2 C signal. These proposed changes are described in a 
Draft IS-GPS-200D. The draft document can be viewed and downloaded at 
the following Web site: http://gps.losangeles.af.mil. Click on ``System 
Engineering'', then ``Public Interface Control Working Group (ICWG)''. 
Reviewers should save the document to a local memory location prior to 
opening and performing the review.

ADDRESSES: Submit comments to SMC/GPERC, 2420 Vela Way, Suite 1467, El 
Segundo CA 90245-4659. 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 Internet address: 
[email protected]. Comments may also be sent by fax to 1-310-
363-6387.

DATES: The suspense date for comment submittal is March 29, 2004.

FOR FURTHER INFORMATION CONTACT: GPERC at 1-310-363-2883, GPS JPO 
System Engineering Division, or write to the address above.

SUPPLEMENTARY INFORMATION: The civilian and military communities use 
the Global Positioning System, which employs a constellation of 24 
satellites to provide continuously transmitted signals to enable 
appropriately configured GPS user equipment to

[[Page 10004]]

produce accurate position, navigation, and time information.

Pamela D. Fitzgerald,
Air Force Federal Register Liaison Officer.
[FR Doc. 04-4667 Filed 3-2-04; 8:45 am]
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