[Federal Register Volume 69, Number 184 (Thursday, September 23, 2004)]
[Notices]
[Page 57005]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 04-21365]



[[Page 57005]]

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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/User Segment L5 Interface Specification (IS)

AGENCY: Department of the Air Force, DoD.

ACTION: Notice and request for review/comment of changes to IS-GPS-705.

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SUMMARY: This notice informs the public that the Global Positioning 
System (GPS) Joint Program Office (JPO) proposes to revise IS-GPS-705, 
Navstar GPS Space Segment/User Segment L5 Interfaces. This proposal is 
designated as PIRN-705-001. 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 L5 signal. The proposal 
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 15 September 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 produce accurate 
position, navigation, and time information.

Pamela D. Fitzgerald,
Air Force Federal Register Liaison Officer.
[FR Doc. 04-21365 Filed 9-22-04; 8:45 am]
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