SUBJ: GPS STATUS 14 Dec 1999 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, 13, 14, 15, 16, PLANE : SLOT F1, B3, C2, D4, B4, C1, C4, A5, A1, E3, F5, E1, D2, E5, CLOCK : CS, CS, CS, RB, CS, CS, RB, RB, CS, CS, RB, CS, CS, CS, BLOCK II: PRNS 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31 PLANE : SLOT D3, F3, A4, E2, B1, E4, D1, A2, F2, A3, F4, B2, C3 CLOCK : CS, CS, RB, 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) 1999189 241651Z NOV 1999 24 FCSTMX 336/1200-337/0000 1999193 021200Z DEC 1999 30 FCSTMX 340/1400-341/0200 1999194 021551Z DEC 1999 24 FCSTSUMM 336/1226-336/1541 1999195 021628Z DEC 1999 02 FCSTMX 342/2000-343/0800 1999196 062304Z DEC 1999 30 FCSTSUMM 340/1429-340/2243 1999197 090228Z DEC 1999 02 FCSTSUMM 342/2151-343/0219 1999198 101741Z DEC 1999 10 FCSTDV 348/0630-348/1700 1999199 101744Z DEC 1999 13 FCSTMX 349/0230-349/1430 1999200 101747Z DEC 1999 07 FCSTMX 349/2000-350/0800 1999201 101749Z DEC 1999 26 FCSTMX 351/0600-351/2200 1999202 141449Z DEC 1999 10 FCSTSUMM 348/0651-348/1443 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) 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 FREQUENCY STANDARD ON SVN22 WAS CHANGED TO A RB ON 7 OCT 98. THE FREQUENCY STANDARD FOR SVN34 WAS CHANGED TO A RB ON 14 SEP 98. C. THE POINT OF CONTACT FOR GPS MILITARY OPERATIONAL SUPPORT IS CMDR BROOMFIELD (719)554-5770 OR DSN 692-5770. D. CIVILIAN: FOR INFORMATION, CONTACT US COAST GUARD NAVCEN AT COMMERCIAL (703)313-5900 24 HOURS DAILY, HTTP://WWW.NAVCEN.USCG.MIL OR FTP://FTP.NAVCEN.USCG.MIL. E. 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.