GPS OPERATIONAL ADVISORY 118 SUBJ: GPS STATUS 28 APR 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 B2, D1, C2, D4, B6, C5, A6, 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, A4, 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, B5, 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)

2009022 261836Z MAR 2009 18 FCSTDV 092/1600-093/0630
2009024 030108Z APR 2009 18 FCSTSUMM 092/1636-093/0045
2009026 100753Z APR 2009 30 FCSTDV 106/0630-107/1200
2009027 141821Z APR 2009 30 FCSTCANC 106/0630-/
2009028 232003Z APR 2009 16 FCSTDV 119/2115-120/1200
B ADVISORIES: NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU TIME START - STOP)

C GENERAL: NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU TIME START - STOP)

2009020 202158Z MAR 2009 GENERAL /-/
2009021 241836Z MAR 2009 01 LAUNCH /-/
2009023 262212Z MAR 2009 GENERAL /-/
2009025 061455Z APR 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

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