UNCLASSIFIED
GPS OPERATIONAL ADVISORY        358.OA1
SUBJ: GPS STATUS      24 DEC 2018

1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM):
A. BLOCK I : NONE
B. BLOCK II: PRNS  1,  2,  3,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15
   PLANE   : SLOT D2, D1, E1, E3, D4, A4, C3, F3, E2, D5, B4, F6, F5, F2
   CLOCK   :      RB, RB, RB, RB, RB, RB, CS, RB, RB, RB, RB, RB, RB, RB
   BLOCK II: PRNS 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29
   PLANE   : SLOT B1, C4, D6, C5, E4, D3, E6, F4, A1, B2, B5, C2, B3, C1
   CLOCK   :      RB, RB, RB, RB, RB, RB, RB, RB, CS, RB, RB, RB, RB, RB
   BLOCK II: PRNS 30, 31, 32
   PLANE   : SLOT A3, A2, F1
   CLOCK   :      RB, RB, RB

2. CURRENT ADVISORIES AND FORECASTS :
A. FORECASTS:           FOR SEVEN DAYS AFTER EVENT CONCLUDES.
NANU          MSG DATE/TIME       PRN  TYPE         SUMMARY (JDAY/ZULU TIME START - STOP)

2018062       111534Z DEC 2018    25   FCSTDV       348/0515-348/1715
2018064       141145Z DEC 2018    25   FCSTSUMM     348/0534-348/1143
B. ADVISORIES:           
NANU          MSG DATE/TIME       PRN  TYPE         SUMMARY (JDAY/ZULU TIME START - STOP)

2018065       160200Z DEC 2018    18   UNUNOREF     350/0153-350/0154
2018066       170231Z DEC 2018    18   UNUNOREF     351/0225-351/0226
2018067       180108Z DEC 2018    18   UNUNOREF     352/0123-352/0123
2018068       190224Z DEC 2018    18   UNUNOREF     353/0222-353/0224
2018069       200058Z DEC 2018    18   UNUNOREF     354/0055-354/0057
2018070       210207Z DEC 2018    18   UNUNOREF     355/0205-355/0209
2018071       211313Z DEC 2018    16   UNUSUFN      355/1304-/
2018072       211734Z DEC 2018    16   UNUSABLE     355/1304-355/1732
C. GENERAL:           
NANU          MSG DATE/TIME       PRN  TYPE         SUMMARY (JDAY/ZULU TIME START - STOP)

2014038       241350Z APR 2014         GENERAL      /-/
2014039       271351Z APR 2014         GENERAL      /-/
2017122       272144Z NOV 2017         GENERAL      /-/
2018010       052217Z MAR 2018         GENERAL      /-/
2018042       032104Z OCT 2018         GENERAL      /-/
2018051       121624Z NOV 2018         GENERAL      /-/

3. REMARKS:
A. THE POINT OF CONTACT FOR GPS MILITARY OPERATIONAL SUPPORT IS THE GPS 
OPERATIONS CENTER AT 719-567-2541 OR DSN 560-2541.
B. CIVILIAN:  FOR INFORMATION, CONTACT US COAST GUARD NAVCEN AT
COMMERCIAL 703-313-5900 24 HOURS DAILY AND INTERNET 
HTTPS://WWW.NAVCEN.USCG.GOV
C. MILITARY SUPPORT WEBPAGES CAN BE FOUND AT THE FOLLOWING
HTTPS://GPS.AFSPC.AF.MIL/GPS OR HTTPS://GPS.AFSPC.AF.MIL/GPSOC