SUBJ: GPS STATUS 28 JUN 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 : RB, CS, CS, CS, CS, 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 095-95139 051333Z MAY 95 PRN12 FCST MAINT 139/0000-45 DAYS 098-95196 101327Z MAY 95 FCST TESTING 128-196BWTN1200Z-1600Z 131-95181 161311Z JUN 95 PRN21 FCST DV 181/1340-UP TO 12 HOURS 136-95174 231708Z JUN 95 PRN12 FCST SUM 142/0308-174/1650 138-95192 272034z JUN 95 PRN26 FCST 192/2150-UP TO 12 HOURS B. ADVISORIES NANU MSG DATE/TIME PRN TYPE SUMMARY 115-95142 220357Z MAY 95 PRN12 UNUS 142/0308-UFN 135-95174 231706Z JUN 95 PRN12 UNUW SUM 142/0308-174/1650 137-95176 251852Z JUN 95 PRN12 UNUS 176/1541-176/1542 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