GPS OPERATIONAL ADVISORY 96012
SUBJ: GPS STATUS 12 JAN 96
1. SATELLITES, PLANES AND CLOCKS (CS=CESIUM RB=RUBIDIUM):
A. BLOCK I : PRNS 12
   PLANE   : SLOT A1
   CLOCK   :      RB
B. BLOCK II: PRNS  1,  2,  4,  5,  6,  7,  9, 14, 15, 16, 17, 18, 19, 20, 21
   PLANE   : SLOT F1, B3, D4, B4, C1, C4, A1, E1, D2, E3, D3, F3, A4, B2, E2
   CLOCK   :      RB, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, RB, RB, CS
   BLOCK II: PRNS 22, 23, 24, 25, 26, 27, 28, 29, 31
   PLANE   : SLOT B1, E4, D1, A2, F2, A3, C2, F4, C3
   CLOCK   :      CS, CS, RB, CS, CS, CS, CS, CS, RB
2. CURRENT ADVISORIES (ADV) AND FORECASTS (FCST):
INFORMATION IS REPEATED FOR SEVEN DAYS AFTER EVENT CONCLUDES.
A. FORECASTS:
NANU       MSG DATE/TIME   PRN      TYPE  SUMMARY
261-96008  261859Z DEC 95  PRN24    FCST  MAINT       008/1648-UP TO 12 HRS
262-96008  271451Z DEC 95  PRN24    FCST  MAINT(CORR) 008/1648-UP TO 12 HRS
263-96005  292030Z DEC 95  PRN29    FCST  MAINT(CORR) 005/1200-UP TO 10 HRS
264-96005  022137Z JAN 96  PRN29    FCST  MAINT(CORR) 005/1200-UP TO 18 HRS
001-96003  031913Z JAN 96  PRN13    FCST  MAINT       018/0000-UP TO 4 HRS
002-96004  041442Z JAN 96  PRN02    FCST  MAINT(CORR) 018/0000-UP TO 4 HRS
003-96005  050123Z JAN 96  PRN29    FCST  CANCELLATION005/1200
004-96008  082132Z JAN 96  PRN19    FCST  MAINT       012/1400-013/0400
005-96009  090403Z JAN 96  PRN24    FCST  SUMMARY     008/1944-009/0346
006-96017  092044Z JAN 96  PRN02    FCST  MAINT(CORR) 017/2330-018/0130
012-96012  120345Z DEC 96  PRN19    FCST  CANCELLATION012/1400
B. ADVISORIES
NANU       MSG DATE/TIME   PRN      TYPE  SUMMARY
242-95325  212024Z NOV 95  PRN12    UNUS              322/1845-UFN
007-95010  102215Z JAN 96  PRN31    UNUS              010/2039-UFN
008-96011  111111Z JAN 96  PRN20    UNUS              011/1000-UFN
009-96011  111338Z JAN 96  PRN20    UNUS              011/1000-011/1333
010-96011  111603Z JAN 96  PRN31    UNUS              010/2039-011/1556
011-96011  112300Z JAN 96  PRN20    UNUS              011/2246-UFN
C.  GENERAL: NO IMPACT, INFORMATIONAL PURPOSES ONLY
NUMBER     MSG DATE/TIME   PRN      TYPE  SUMMARY
3. REMARKS:
A. SELECTIVE AVAILABILITY WAS REACTIVATED AT STANDARD
POSITIONING SERVICE ACCURACY LEVELS ON DAY 182 (01 JUL 91) AT 0400
UTC. VARIATIONS MAY BE SEEN IN THE EFFECT OF SA DURING TESTING, BUT
THE EFFECT SHOULD NOT EXCEED STANDARD POSITIONING SERVICE LEVELS.
THE POINT OF CONTACT IS LCDR JACKSON (719)554-2634 OR DSN 692-2634.
B. CIVILIAN: US COAST GUARD NAVCEN AT COMMERCIAL (703)313-5900 24
HOURS DAILY, COMPUTER BBS (703) 313-5910, AND INTERNET
HTTP://WWW.NAVCEN.USCG.MIL/ OR GOPHER://GOPHER.NAVCEN.USCG.MIL/.
OR FTP://FTP.NAVCEN.USCG.MIL
C. MILITARY: 2SOPS/DOAN 1LT HILGENBERG AT (719)567-6143 OR DSN 560-6143