NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2025058
SUBJ: SVN74 (PRN04) UNUSABLE JDAY 228/1059 - JDAY 234/1918
1.     NANU TYPE: UNUSABLE
       NANU NUMBER: 2025058
       NANU DTG: 221932Z AUG 2025
       REFERENCE NANU: 2025057
       REF NANU DTG: 161127Z AUG 2025
       SVN: 74
       PRN: 04
       START JDAY: 228
       START TIME ZULU: 1059
       START CALENDAR DATE: 16 AUG 2025
       STOP JDAY: 234
       STOP TIME ZULU: 1918
       STOP CALENDAR DATE: 22 AUG 2025

2.  CONDITION: GPS SATELLITE SVN74 (PRN04) WAS UNUSABLE ON JDAY 228
    (16 AUG 2025) BEGINNING 1059 ZULU UNTIL JDAY 234 (22 AUG 2025)
    ENDING 1918 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