SUBJ: GPS STATUS 27 Jun 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, 15, 16 PLANE : SLOT F4, B3, C2, D4, B4, C1, C4, A3, A1, E3, D2, F5, D5, E5 CLOCK : CS, CS, CS, RB, CS, CS, RB, RB, CS, CS, RB, RB, CS, RB BLOCK II: PRNS 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31 PLANE : SLOT D3, F3, A5, E1, E2, B1, E4, D1, A2, F2, A4, F1, B2, C3 CLOCK : CS, 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) 2000089 270735Z MAY 2000 13 FCSTMX 153/0600-153/1800 2000090 302012Z MAY 2000 13 FCSTRESCD 153/0600-153/2130 2000092 012125Z JUN 2000 13 FCSTSUMM 153/0635-153/2006 2000093 051820Z JUN 2000 07 FCSTDV 171/1000-171/2200 2000094 051822Z JUN 2000 22 FCSTMX 167/1700-168/0500 2000095 052103Z JUN 2000 22 FCSTRESCD 167/0200-167/1400 2000096 132110Z JUN 2000 11 FCSTDV 172/2200-175/1400 2000097 150927Z JUN 2000 22 FCSTSUMM 167/0231-167/0915 2000098 152130Z JUN 2000 20 FCSTDV 179/2215-180/1015 2000099 191725Z JUN 2000 07 FCSTSUMM 171/1027-171/1725 2000100 192031Z JUN 2000 20 FCSTRESCD 178/1415-180/1230 2000101 202240Z JUN 2000 09 FCSTMX 180/1830-181/0630 2000102 220737Z JUN 2000 11 FCSTSUMM 172/2245-174/0737 B. ADVISORIES: NANU MSG DATE/TIME PRN TYPE SUMMARY (JDAY/ZULU TIME START - STOP) 2000081 232109Z MAY 2000 16 UNUSUFN 144/1959-/ 2000082 240226Z MAY 2000 16 UNUSABLE 143/1959-144/0224 2000083 241532Z MAY 2000 16 UNUSABLE 144/1959-145/0224 2000085 250430Z MAY 2000 31 UNUSUFN 146/0215-/ 2000087 251125Z MAY 2000 31 UNUSABLE 146/0215-146/1108 2000091 011624Z JUN 2000 20 USABINIT 153/1609-/ 2000103 231021Z JUN 2000 16 UNUSUFN 175/0703-/ 2000104 231406Z JUN 2000 16 UNUSABLE 175/0703-175/1351 2000105 270254Z JUN 2000 13 UNUSUFN 179/0056-/ 2000106 270325Z JUN 2000 13 UNUSABLE 179/0056-179/0300 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 THE GPS SUPPORT CENTER AT (719)567-2541 OR DSN 560-2541. C. CIVILIAN: FOR INFORMATION, CONTACT US COAST GUARD NAVCEN AT COMMERCIAL (703)313-5900 24 HOURS DAILY,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)567-2744, DSN 560-2744, OR INTERNET HTTP://WWW.SCHRIEVER.AF.MIL/GPS.