SUBJ: GPS STATUS 11 MAR 93
1. SATELLITES, PLANES AND CLOCKS (CS=CESIUM RB=RUBIDIUM):
A. BLOCK I : PRNS  3, 11, 12, 13
   PLANE   : SLOT C4, C3, A1, C1
   CLOCK   :      RB, RB, RB, CS
B. BLOCK II: PRNS  1,  2, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27
   PLANE   : SLOT F1, B3, E1, D2, E3, D3, F3, A4, B2, E2, E4, D1, A2, F2, A3
   CLOCK   :      CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, RB, CS, CS, CS
   BLOCK II: PRNS 28, 29
   PLANE   : SLOT C2, F4
   CLOCK   :      CS, CS
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
034-93064 161909Z FEB 93  PRN14    FCST   MAINT       064/1455 UP TO 8 HOURS
044-93076 251421Z FEB 93  PRN18    FCST   MAINT       076/1515 UP TO 8 HOURS
045-93069 252158Z FEB 93  PRN24    FCST   MAINT       069/0230 UP TO 4.5 HRS
054-93085 102115Z MAR 93  PRN25    FCST   MAINT       084/2015 UP TO 4 HOURS
B. ADVISORIES:
NANU      MSG DATE/TIME   PRN      TYPE  SUMMARY
051-93064 051420Z MAR 93  PRN3     ADV   UNUSABLE     064/1325-064/1337
052-93065 060100Z MAR 93  PRN13    ADV   UNUSABLE     064/2200-065/0018
053-93069 101439Z MAR 93  PRN12    ADV   UNUSABLE     069/0100-069/0113
3. REMARKS:
A. USERS OF GPS ARE CAUTIONED THAT THE SYSTEM IS NOT YET FULLY
OPERATIONAL. SIGNAL AVAILABILITY AND ACCURACY ARE SUBJECT TO
CHANGE DUE TO AN INCOMPLETE CONSTELLATION AND OPERATIONAL TEST
ACTIVITIES.
B. 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 Lt Col ROB WORLEY (719)554-2634 OR DSN
692-2634.
4. POINTS OF CONTACT:
A. CIVILIAN: US COAST GUARD AT COMMERCIAL (703)313-5900 VOICE OR
(703)313-5910 COMPUTER BBS.
B. MILITARY: 2SOPS/DOAI CAPTAIN HUTSELL AT (719)550-6378/80 OR DSN 560-
6378/80