SUBJ: GPS STATUS 07 Apr 2000 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, B3, C2, D4, B4, C1, C4, A3, A1, E3, D2, F5, E1, D5, CLOCK : CS, CS, CS, RB, CS, CS, RB, CS, CS, CS, RB, RB, CS, CS, BLOCK II: PRNS 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31 PLANE : SLOT E5, D3, F3, A5, E2, B1, E4, D1, A2, F2, A4, F1, B2, C3 CLOCK : CS, CS, CS, CS, CS, RB, CS, RB, CS, RB, CS, RB, CS, CS 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) 2000034 221447Z MAR 2000 09 FCSTMX 086/1500-087/0800 2000035 221451Z MAR 2000 11 FCSTMX 089/1200-090/0000 2000036 242341Z MAR 2000 11 FCSTMX 090/1200-091/0000 2000038 270722Z MAR 2000 09 FCSTSUMM 086/1542-087/0634 2000039 281941Z MAR 2000 11 FCSTCANC 088/1948-/ 2000040 281949Z MAR 2000 11 FCSTCANC 088/1951-/ 2000041 292138Z MAR 2000 19 FCSTDV 091/1115-093/1115 2000042 311626Z MAR 2000 13 FCSTDV 097/0930-097/2130 2000043 010011Z APR 2000 19 FCSTSUMM 091/1121-092/0000 2000044 032111Z APR 2000 19 FCSTDV 099/1000-101/1000 2000045 061433Z APR 2000 24 FCSTDV 102/2000-103/0800 2000046 061916Z APR 2000 13 FCSTSUMM 097/0939-097/1915 B. ADVISORIES: NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU TIME START - STOP) 2000031 041036Z MAR 2000 16 UNUSUFN 064/0955-/ 2000037 270004Z MAR 2000 14 UNUSUFN 086/2348-/ C. GENERAL: NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU TIME START - STOP) 3. REMARKS: A. ANTI-SPOOF WAS DEACTIVATED ON JDAY 033 (02 FEB 97) AT OOOOZ. ANTI-SPOOF WAS REACTIVATED ON JDAY 055 (24 FEB 97) AT 0000Z. B. THE POINT OF CONTACT FOR GPS MILITARY OPERATIONAL SUPPORT IS LT CMDR WALLS (719)554-5770 OR DSN 692-5770. C. CIVILIAN: FOR INFORMATION, CONTACT US COAST GUARD NAVCEN AT COMMERCIAL (703)313-5900 24 HOURS DAILY, AND INTERNET HTTP://WWW.NAVCEN.USCG.MIL OR FTP://FTP.NAVCEN.USCG.MIL. D. MILITARY: FOR INFORMATION, CONTACT CAPT PAUL HERMANN, 2SOPS/DOAN NAVIGATION ANALYST AT (719)567-6393, DSN 560-6393, OR INTERNET HTTP://WWW.SCHRIEVER.AF.MIL/GPS.