GPS OPERATIONAL ADVISORY 261 SUBJ: GPS STATUS 17 SEP 2008

1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM): A BLOCK I : NONE B BLOCK II: PRNS 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 PLANE : SLOT D1, C2, D4, B5, C5, A6, A3, A1, E3, D2, B4, F3, F1, F2 CLOCK : RB, CS, RB, RB, RB, RB, CS, CS, CS, RB, RB, RB, RB, RB BLOCK II: PRNS 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 PLANE : SLOT B1, C4, E4, C3, E1, D3, E2, F4, D5, A5, F5, A4, B3, C1 CLOCK : RB, RB, RB, RB, RB, RB, RB, RB, CS, RB, RB, CS, RB, RB BLOCK II: PRNS 30, 31, 32 PLANE : SLOT B2, A2, E5 CLOCK : 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)

2008094 272034Z AUG 2008 07 FCSTMX 249/1800-250/0600
2008097 051426Z SEP 2008 20 FCSTMX 253/1330-254/0130
2008098 051431Z SEP 2008 23 FCSTMX 256/1500-257/0300
2008099 052138Z SEP 2008 07 FCSTSUMM 249/1803-249/2135
2008100 091649Z SEP 2008 20 FCSTSUMM 253/1401-253/1642
2008101 111839Z SEP 2008 17 FCSTMX 260/1500-261/0300
2008102 111854Z SEP 2008 28 FCSTMX 262/1500-263/0300
2008103 112004Z SEP 2008 12 FCSTDV 260/2330-261/1400
2008104 121813Z SEP 2008 23 FCSTSUMM 256/1511-256/1808
2008106 162000Z SEP 2008 17 FCSTSUMM 260/1526-260/1939
2008107 170556Z SEP 2008 12 FCSTSUMM 260/2346-261/0554
B ADVISORIES: NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU TIME START - STOP)

2008084 052349Z AUG 2008 05 UNUSUFN 218/2338-/
2008092 262231Z AUG 2008 25 UNUSUFN 239/2219-/
2008105 160020Z SEP 2008 25 UNUSABLE 239/2219-260/0014
C GENERAL: NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU TIME START - STOP)

1. 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 HTTP://GPS AFSPC AF MIL/GPS OR HTTP://GPS AFSPC AF MIL/GPSOC

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