NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2009129
Sam Wormley
http://gps.afspc.af.mil/gps/Current/current.nnu
http://www.navcen.uscg.gov/gps/geninfo/NANUabbr.htm
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2009129 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
On 21 Dec 2009(J355), after 2200z, GPS will transition SVN24 (PRN24)
into the broadcast almanac for all satellites. The almanac transition,
one satellite at a time, will require approximately 24 hours to
complete. Before, during, and after the transition SVN24 (PRN24) will
remain unusable until further notice. Future NANUs will notify users of
any changes to the above-stated status.
*** GENERAL MESSAGE TO ALL GPS USERS ***
POC:
CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTP://GPS.AFSPC.AF.MIL/GPSOC,
DSN 560-2541,
COMM 719-567-2541, gps_s...@schriever.af.mil,
HTTPS://gps.afspc.af.mil
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514,
COMM 805-606-3514, JSPOCCO...@VANDENBERG.AF.MIL
UNCLASSIFIED
GPS OPERATIONAL ADVISORY 353.OA1
SUBJ: GPS STATUS 19 DEC 2009
1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM):
A. BLOCK I : NONE
B. BLOCK II: PRNS 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
PLANE : SLOT B6, D1, C2, D4, E6, C6, A4, A3, A1, E3, D2, B4, F3, F1
CLOCK : RB, RB, CS, RB, RB, RB, RB, CS, CS, CS, RB, RB, RB, RB
BLOCK II: PRNS 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28
PLANE : SLOT F2, B1, C4, E4, C3, E1, D3, E2, F4, D5, A5, F5, A6, B3
CLOCK : RB, RB, RB, RB, RB, RB, RB, RB, RB, CS, RB, RB, CS, RB
BLOCK II: PRNS 29, 30, 31, 32
PLANE : SLOT C1, B2, A2, E5
CLOCK : RB, CS, RB, RB
2. CURRENT ADVISORIES AND FORECASTS :
A. FORECASTS: FOR SEVEN DAYS AFTER EVENT CONCLUDES.
NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU
TIME START - STOP)
B. ADVISORIES:
NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU
TIME START - STOP)
2009066 122006Z SEP 2009 24 UNUSUFN 255/2017-/
2009130 181525Z DEC 2009 25 UNUSUFN 352/1522-/
C. GENERAL:
NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU
TIME START - STOP)
2009025 061455Z APR 2009 GENERAL /-/
2009126 112246Z DEC 2009 GENERAL /-/
2009127 112328Z DEC 2009 GENERAL /-/
2009128 151431Z DEC 2009 GENERAL /-/
2009129 172342Z DEC 2009 GENERAL /-/
2009131 182232Z DEC 2009 GENERAL /-/
3. REMARKS:
A. THE POINT OF CONTACT FOR GPS MILITARY OPERATIONAL SUPPORT IS THE GPS
OPERATIONS CENTER AT (719)567-2541 OR DSN 560-2541.
B. CIVILIAN: FOR INFORMATION, CONTACT US COAST GUARD NAVCEN AT
COMMERCIAL (703)313-5900 24 HOURS DAILY AND INTERNET
HTTP://WWW.NAVCEN.USCG.GOV
C. MILITARY SUPPORT WEBPAGES CAN BE FOUND AT THE FOLLOWING
HTTPS://GPS.AFSPC.AF.MIL/GPS OR HTTP://GPS.AFSPC.AF.MIL/GPSOC