SUBJ: GPS STATUS 29 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, CS, RB, 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
054-93085 102115Z MAR 93  PRN25    FCST   MAINT       084/2015 UP TO 8 HRS
069-93096 241557Z MAR 93  PRN28    FCST   MAINT       095/1630 UP TO 12 HRS
B. ADVISORIES:
NANU      MSG DATE/TIME   PRN      TYPE  SUMMARY
066-93082 230030Z MAR 93  ALLSV    ADV   STATUS       075-UFN
067-93082 231435Z MAR 93  ALLSV    ADV   STATUS       075-082/0400
068-93083 241450Z MAR 93  PRN12    ADV   UNUSABLE     083/0342-083/0350
070-93084 251420Z MAR 93  PRN13    ADV   UNUSABLE     084/0645-084/0700
071-93084 251947Z MAR 93  PRN3     ADV   UNUSABLE     084/1923-084/1936
072-93084 252016Z MAR 93  PRN11    ADV   UNUSABLE     084/2000-084/2010
073-93085 260534Z MAR 93  PRN25    ADV   USABLE       085/0528
074-93088 291433Z MAR 93  PRN13    ADV   UNUSABLE     086/1924-086/1938
075-93088 291435Z MAR 93  PRN11    ADV   UNUSABLE     087/1438-087/1450
076-93088 291437Z MAR 93  PRN11    ADV   UNUSABLE     087/2327-087/2328
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