NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2025073
SUBJ: SVN74 (PRN04) FORECAST OUTAGE JDAY 289/1815 - JDAY 290/0615
1.     NANU TYPE: FCSTDV
       NANU NUMBER: 2025073
       NANU DTG: 091943Z OCT 2025
       REFERENCE NANU: N/A
       REF NANU DTG: N/A
       SVN: 74
       PRN: 04
       START JDAY: 289
       START TIME ZULU: 1815
       START CALENDAR DATE: 16 OCT 2025
       STOP JDAY: 290
       STOP TIME ZULU: 0615
       STOP CALENDAR DATE: 17 OCT 2025

2.  CONDITION: GPS SATELLITE SVN74 (PRN04) WILL BE UNUSABLE ON JDAY 289
    (16 OCT 2025) BEGINNING 1815 ZULU UNTIL JDAY 290 (17 OCT 2025)
    ENDING 0615 ZULU.

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