SUBJ: GPS STATUS 14 SEP 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
293-93256 081535Z SEP 93 PRN2,3,25 FCST   TEST        256/1300-256/2100
296-93258 092006Z SEP 93 PRN2,3,25 FCST   TEST/CHG    258/1300-258/2100
299-93258 101917Z SEP 93 PRN3,17,26FCST   TEST/CHG    258/1300-258/2100
300-93263 102002Z SEP 93 PRN23     FCST  MAINT        263/0900-UP TO 16 HRS
B. ADVISORIES:
NANU      MSG DATE/TIME   PRN      TYPE  SUMMARY
291-93250 071411Z SEP 93  PRN3     ADV   UNUSABLE     246/2208-246/2221
292-93250 071414Z SEP 93  PRN3     ADV   UNUSABLE     247/0559-247/0600
294-93251 082058Z SEP 93 SEE NANU  ADV   ASACTVTY         SEE NANU
295-93251 082216Z SEP 93  PRN29    ADV   UNUSABLE     246/0918-251/2216
297-93252 092244Z SEP 93  PRN3     ADV   UNUSABLE     252/2202-252/2203
298-93252 092252Z SEP 93  PRN13    ADV   UNUSABLE     252/2145-252/2215
301-93253 102004Z SEP 93  PRN13    ADV   UNUSABLE     253/1933-253/1950
302-93255 121758Z SEP 93  PRN12    ADV   UNUSABLE     255/1738-UFN
303-93255 121933Z SEP 93  PRN12    ADV   UNUSABLE     255/1738-255/1800
304-93256 131345Z SEP 93  PRN13    ADV   UNUSABLE     254/1621-254/1622
305-93256 131350Z SEP 93  PRN12    ADV   UNUSABLE     255/0229-255/0230
306-93256 131353Z SEP 93  PRN12    ADV   UNUSABLE     256/0600-256/0613
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