Navigation Center Logo
 Consolidated Nav Info DGPS Advisories GPS Advisories / NANUs GPS Testing Notices LNMs Almanacs Nav Rules AIS Contact Us Search Home

Outage information is shown below each site. It is requested that users notify the Navigation Information Services Watchstander at (703) 313-5900 or via email regarding any observed outages, problems, or requests.

The U.S. Coast Guard DGPS service is available for positioning and navigation; however, users may experience service interruptions without notice. U.S. Coast Guard DGPS broadcasts should not be used under any circumstances where a sudden system failure or inaccuracy might constitute a safety hazard.
Differential corrections are based on the NAD 83 position of the reference station (REFSTA) antenna. Positions obtained using DGPS should be referenced to NAD 83 coordinate system only. All sites are broadcasting RTCM Type 9-3 correction messages.


CURRENT DGPS ADVISORIES FOR 14 MAY 2008
SITE NAMESITE IDBNM #OUTAGE MESSAGE
SCHEDULED / UNSCHEDULED OUTAGES
Aransas Pass, TX816408-08UNUSABLE as of 1100Z 16 May 2008 to 2100Z 16 May 2008
Aransas Pass, TX816396-08UNUSABLE as of 1100Z 13 May 2008 to 2100Z 13 May 2008
Aransas Pass, TX816402-08UNUSABLE as of 1100Z 15 May 2008 to 2100Z 15 May 2008
Aransas Pass, TX816398-08UNUSABLE as of 1100Z 14 May 2008 to 2100Z 14 May 2008
Brunswick NAS, ME800399-08UNUSABLE as of 1200Z 14 May 2008 to 2200Z 14 May 2008
Brunswick NAS, ME800409-08UNUSABLE as of 1200Z 16 May 2008 to 2200Z 16 May 2008
Brunswick NAS, ME800403-08UNUSABLE as of 1200Z 15 May 2008 to 2200Z 15 May 2008
Cape Mendocino, CA885400-08UNUSABLE as of 1600Z 14 May 2008 to 0400Z 15 May 2008
Clark, SD850410-08UNUSABLE as of 1400Z 16 May 2008 to 1600Z 16 May 2008
Macon, GA822401-08UNMONITORED as of 0115Z 12 May 2008 UNTIL FURTHER NOTICE
Vicksburg, MS860305-08UNUSABLE as of 1940Z 18 Apr 2008 UNTIL FURTHER NOTICE
Whidbey Island, WA888411-08UNUSABLE as of 1600Z 16 May 2008 to 2359Z 16 May 2008
Whidbey Island, WA888405-08UNUSABLE as of 1600Z 15 May 2008 to 2359Z 15 May 2008
GENERAL INFORMATION
No additional information at this time.