GPS OPERATIONAL ADVISORY        101.OA1
SUBJ: GPS STATUS 11 APR 2003
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, 13, 14, 15
   PLANE   : SLOT F4, B5, C2, D4, B4, C1, C4, A3, A1, E3, D2, F3, F1, D5
   CLOCK   :      CS, CS, CS, RB, CS, CS, RB, RB, CS, CS, RB, RB, RB, CS
   BLOCK II: PRNS 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30
   PLANE   : SLOT B1, D6, E4, E1, D3, B6, E5, D1, A2, F2, A4, B3, F5, B2
   CLOCK   :      RB, CS, RB, RB, RB, CS, CS, CS, CS, RB, RB, RB, RB, RB
   BLOCK II: PRNS 31
   PLANE   : SLOT C3
   CLOCK   :      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)
2003032       281816Z MAR 2003    02   FCSTDV       093/1915-094/0715
2003033       021650Z APR 2003    03   FCSTMX       099/2245-100/1045
2003034       040646Z APR 2003    02   FCSTSUMM     093/1947-094/0643
2003036       100206Z APR 2003    03   FCSTSUMM     099/2255-100/0206
2003037       111613Z APR 2003    17   FCSTDV       107/2115-108/0915
B. ADVISORIES:
NANU          MSG DATE/TIME       PRN  TYPE         SUMMARY (JDAY/ZULU TIME START - STOP)
2002145       031406Z DEC 2002    22   UNUSUFN      337/1402-/
2003038       120536Z APR 2003    21   USABINIT     102/0527-/
C. GENERAL:
NANU          MSG DATE/TIME       PRN  TYPE         SUMMARY (JDAY/ZULU TIME START - STOP)
2003035       042152Z APR 2003         GENERAL      /-/
3. REMARKS:
A. THE POINT OF CONTACT FOR GPS MILITARY OPERATIONAL SUPPORT IS THE GPS
SUPPORT 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
WWW.SCHRIEVER.AF.MIL/GPS OR WWW.PETERSON.AF.MIL/USSPACE/GPS_SUPPORT