SUBJ: GPS STATUS 28 JUL 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 144-95203 071454Z JUL 95 PRN18 FCST DV 203/0202-UP TO 12 HOURS 152-95212 171344Z JUL 95 PRN21 FCST ION 212/1420-UP TO 18 HOURS 153-95213 171349Z JUL 95 PRN23 FCST ION 213/2050-UP TO 18 HOURS 155-95203 220842Z JUL 95 PRN18 FCST SUMMARY 203/0202-203/0842 156-95220 251914Z JUL 95 PRN05 FCST DV 220/1322-UP TO 12 HOURS B. ADVISORIES 157-95207 262008Z JUL 95 PRN12 UNUS SUMMARY 207/1800-207/1815 158-95207 262339Z JUL 95 PRN12 UNUS SUMMARY 207/2317-207/2318 NANU MSG DATE/TIME PRN TYPE SUMMARY 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