SUBJ: GPS STATUS 06 AUG 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,  7,  9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
   PLANE   : SLOT F1, B3, C4, A1, E1, D2, E3, D3, F3, A4, B2, E2, B1, E4, D1
   CLOCK   :      CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS
   BLOCK II: PRNS 25, 26, 27, 28, 29, 31
   PLANE   : SLOT A2, F2, A3, C2, F4, C3
   CLOCK   :      RB, 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
211-93214 231517Z JUL 93  PRN15    FCST   MAINT       214/1515-UP TO 08 HRS
220-93221 292039Z JUL 93  PRN23 FCST/CAN  CANCEL      221/2050-
221-93225 292026Z JUL 93  PRN26    FCST   MAINT       225/0030-UP TO 08 HRS
231-93229 031933Z AUG 93  PRN14    FCST   MAINT       229/2050-UP TO 12 HRS
233-92224 041810Z AUG 93  PRN26 FCST/CHNG MAINT       224/0030-UP TO 12 HRS
B. ADVISORIES:
NANU      MSG DATE/TIME   PRN      TYPE  SUMMARY
222-93211 301409Z JUL 93  PRN12    ADV   UNUSABLE     210/1700-210/1715
223-93214 021343Z AUG 93  PRN13    ADV   UNUSABLE     212/0917-212/0930
224-93214 021348Z AUG 93  PRN13    ADV   UNUSABLE     212/1700-212/1720
225-93214 021351Z AUG 93  PRN13    ADV   UNUSABLE     213/2215-213/2235
226-93214 021354Z AUG 93  PRN03    ADV   UNUSABLE     213/2206-213/2219
227-93214 030010Z AUG 93  PRN15    ADV   UNUSABLE     214/1540-UFN
228-93214 030230Z AUG 93  PRN15    ADV   UNUSABLE     214/1540-215/0210
230-93215 031855Z AUG 93  PRN12    ADV   UNUSABLE     215/1820-215/1835
232-93216 041407Z AUG 93  PRN3     ADV   UNUSABLE     216/1315-216/1330
234-93217 051329Z AUG 93  PRN3     ADV   UNUSABLE     217/0855-217/0905
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 OR DSN 560-
6378