NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2026005
SUBJ: SVN51 (PRN20) FORECAST OUTAGE JDAY 008/1600 - UNTIL FURTHER NOTICE
1.     NANU TYPE: FCSTUUFN
       NANU NUMBER: 2026005
       NANU DTG: 051805Z JAN 2026
       REFERENCE NANU: N/A
       REF NANU DTG: N/A
       SVN: 51
       PRN: 20
       START JDAY: 008
       START TIME ZULU: 1600
       START CALENDAR DATE: 08 JAN 2026
       STOP JDAY: UFN
       STOP TIME ZULU: N/A
       STOP CALENDAR DATE: N/A

2.  CONDITION: GPS SATELLITE SVN51 (PRN20) WILL BE UNUSABLE NO EARLIER THAN JDAY 008
    (08 JAN 2026) BEGINNING 1600 ZULU UNTIL FURTHER NOTICE.

3.  POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
    MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GWCC-WS.CCE.AF.MIL/GPSOC, DSN 560-2541,
    COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GWCC-WS.CCE.AF.MIL 
    MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
   JSPOCCOMBATOPS@US.AF.MIL