SUBJ: GPS STATUS 21 NOV 96
1. SATELLITES, PLANES AND CLOCKS (CS=CESIUM RB=RUBIDIUM):
A. BLOCK I : NONE
B. BLOCK II: PRNS  1,  2,  3,  4,  5,  6,  7,  9, 10, 14, 15, 16, 17, 18, 19, 20
   PLANE   : SLOT F1, B3, C2, D4, B4, C1, C4, A1, E3, E1, D2, E5, D3, F3, A4, B5
   CLOCK   :      RB, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, RB, CS
   BLOCK II: PRNS 21  22, 23, 24, 25, 26, 27, 28, 29, 30, 31
   PLANE   : SLOT E2  B1, E4, D1, A2, F2, A3, C5, F4, B2, C3
   CLOCK   :      CS, CS, CS, RB, CS, CS, CS, CS, CS, CS, RB
CURRENT ADVISORIES (ADV) AND FORECASTS (FCST):
INFORMATION IS REPEATED FOR SEVEN DAYS AFTER EVENT CONCLUDES.
A. FORECASTS:
NANU       MSG  DATE/TIME  PRN    TYPE           SUMMARY
B. ADVISORIES
NANU       MSG  DATE/TIME  PRN    TYPE           SUMMARY
179-96309  041717Z N0V 96  28     UNUSABLE       309/1634-UFN
182-96321  161112Z NOV 96  10     UNUSABLE       321/1055-UFN
183-96321  161506Z NOV 96  10     UNUSABLE       321/1055-321/1438
184-96322  172139Z NOV 96  15     UNUSABLE       322/2103-UFN
185-96322  172252Z NOV 96  15     UNUSABLE       322/2103-322/2156
187-96331  191515Z NOV 96  04     UNUSABLE       331/0400-UP TO 12 HOURS
C.  GENERAL: NO IMPACT, INFORMATIONAL PURPOSES ONLY
186-96323  180005Z NOV 96         NANU 184-96322 DELAYED DUE TO COMM PROBLEMS
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 OR FTP://FTP.NAVCEN.USCG.MIL
C. MILITARY: 2-SOPS/DOUAN NAVIGATION ANALYST AT (719)567-6378 OR DSN 560-6378