SUBJ: GPS STATUS 16 DEC 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, RB
B. BLOCK II: PRNS  1,  2,  4,  5,  7,  9, 14, 15, 16, 17, 18, 19, 20, 21, 22
   PLANE   : SLOT F1, B3, D4, B4, C4, A1, E1, D2, E3, D3, F3, A4, B2, E2, B1
   CLOCK   :      CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS, CS
   BLOCK II: PRNS 23, 24, 25, 26, 27, 28, 29, 31
   PLANE   : SLOT E4, D1, A2, F2, A3, C2, F4, C3
   CLOCK   :      CS, CS, CS, 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
401-93350 071548Z DEC 93  PRN7     FCST   MAINT       350/0715-UP TO 12 HRS
B. ADVISORIES:
NANU      MSG DATE/TIME   PRN      TYPE  SUMMARY
396-93337 031812Z DEC 93  PRN19    ADV   CA PROB      N/A
403-93343 090514Z DEC 93  PRN1     ADV   CNCLFCST     343/0550-UFN
404-93343 090811Z DEC 93  PRN3     ADV   UNUSABLE     343/0600-343/0700
405-93344 102044Z DEC 93  PRN12    ADV   UNUSABLE     344/2009-344/2100
406-93345 110617Z DEC 93  PRN3     ADV   UNUSABLE     345/0345-UFN
407-93345 110907Z DEC 93  PRN3     ADV   UNUSABLE     345/0345-345/0845
408-93347 131423Z DEC 93  PRN13    ADV   UNUSABLE     344/0724-344/0736
409-93347 131425Z DEC 93  PRN12    ADV   UNUSABLE     345/0822-345/0835
410-93347 131427Z DEC 93  PRN13    ADV   UNUSABLE     345/1000-345/1015
411-93347 131428Z DEC 93  PRN12    ADV   UNUSABLE     346/2300-346/2310
412-93347 132104Z DEC 93  PRN13    ADV   UNUSABLE     308/1640-347/2130
413-93348 142126Z DEC 93  PRN13    ADV   CANCEL       SEE NANU
414-93350 161422Z DEC 93  PRN13    ADV   UNUSABLE     350/1316-350/1320
415-93350 161426Z DEC 93  PRN12    ADV   UNUSABLE     350/1416-350/1420
3. REMARKS:
A. USERS OF GPS ARE CAUTIONED THAT THE SYSTEM IS NOT YET FULLY
OPERATIONAL.
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 CMDR TRICE (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