SUBJ: GPS STATUS 03 APR 95 1. SATELLITES, PLANES AND CLOCKS (CS=CESIUM RB=RUBIDIUM): A. BLOCK I : PRNS 12 PLANE : SLOT A1 CLOCK : RB B. BLOCK II: PRNS 1, 2, 4, 5, 6, 7, 9, 14, 15, 16, 17, 18, 19, 20, 21 PLANE : SLOT F1, B3, D4, B4, C1, C4, A1, E1, D2, E3, D3, F3, A4, B2, E2 CLOCK : CS, CS, CS, CS, RB, CS, CS, CS, CS, CS, CS, CS, RB, RB, CS BLOCK II: PRNS 22, 23, 24, 25, 26, 27, 28, 29, 31 PLANE : SLOT B1, E4, D1, A2, F2, A3, C2, F4, C3 CLOCK : CS, CS, RB, CS, CS, CS, CS, CS, RB 2. CURRENT ADVISORIES (ADV) AND FORECASTS (FCST): INFORMATION IS REPEATED FOR SEVEN DAYS AFTER EVENT CONCLUDES. A. FORECASTS: NANU MSG DATE/TIME PRN TYPE SUMMARY 041-95087 151821Z MAR 95 PRN02 FCST UNUSABLE 087/1450 UP TO 18 HRS 040-95088 151352Z MAR 95 PRN29 FCST UNUSABLE 088/1100-089/0200 044-95094 221344Z MAR 95 PRN17 FCST MAINT 094/1150-UP TO 18 HRS 043A-95093 221442Z MAR 95 PRN29 FCST MAINT 093/1100-094/0200 045-95095 221500Z MAR 95 PRN12 FCST MAINT 095/1830-096/0800 049-95100 271436Z MAR 95 PRN18 FCST MAINT 100/1300-101/0100 053-95104 311504Z MAR 95 PRN16 FCST MAINT 104/0110-UP TO 12 HRS 055-95107 031355Z APR 95 PRN06 FCST MAINT 107/2200-108/0400 B. ADVISORIES NANU MSG DATE/TIME PRN TYPE SUMMARY 048-95085 261011Z MAR 95 PRN12 ADV UNUSABLE 085/0925-085/0949 051-95087 281637Z MAR 95 PRN13 ADV FCSTSUMM 087/1450-087/1635 052-95088 291839Z MAR 95 PRN29 ADV FCSTSUMM 088/1100-088/1849 054-95092 021100Z APR 95 PRN12 ADV UNUSABLE 092/1000-092/1100 C. GENERAL: NO IMPACT, INFORMATIONAL PURPOSES ONLY NUMBER MSG DATE/TIME PRN TYPE SUMMARY 3. REMARKS: A. SELECTIVE AVAILABILITY WAS REACTIVATED AT STANDARD POSITIONING SERVICE ACCURACY LEVELS ON DAY 182 (01 JUL 91) AT 0400 UTC. VARIATIONS MAY BE SEEN IN THE EFFECT OF SA DURING TESTING, BUT THE EFFECT SHOULD NOT EXCEED STANDARD POSITIONING SERVICE LEVELS. THE POINT OF CONTACT IS LTCDR TRICE (719)554-2634 OR DSN 692-2634. B. CIVILIAN: US COAST GUARD AT COMMERCIAL (703)313-5900 VOICE OR (703)313-5910 COMPUTER BBS. C. MILITARY: 2SOPS/DOAN 1LT ALBERTS AT (719)550-6143 OR DSN 560-6143