SUBJ: GPS STATUS 2 JUN 93
1. SATELLITES, PLANES AND CLOCKS (CS=CESIUM RB=RUBIDIUM):
A. BLOCK I : PRNS  3, 12, 13
   PLANE   : SLOT C4, A1, C1
   CLOCK   :      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, 22, 31,  7
   PLANE   : SLOT C2, F4, B1, C3, C4
   CLOCK   :      CS, CS, CS, 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
135-93147 131620Z MAY 93  PRN22    FCST   MAINT       147/0930 UP TO 8 HRS
B. ADVISORIES:
NANU      MSG DATE/TIME   PRN      TYPE  SUMMARY
150-93148 281314Z MAY 93  PRN12    ADV   UNUSABLE     147/2254-147/2305
151-93148 281450Z MAY 93  PRN12    ADV   UNUSABLE     148/1424-148/1436
152-93149 292358Z MAY 93  PRN31    ADV   UNUSABLE     149/2309-UFN
153-93152 011338Z JUN 93  PRN12    ADV   UNUSABLE     148/2234-148/2250
154-93182 011700Z JUN 93  ALL      ADV   LEAP SECOND  181/2359
155-93153 020813Z JUN 93  PRN31    ADV   UNUSABLE     149/2309-153/0602
156-93153 021323Z JUN 93  PRN12    ADV   UNUSABLE     153/0934-153/0935
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 THOMPSON AT (719)550-6378/80 OR DSN 560-
6378/80