NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2026042
SUBJ: SVN79 (PRN28) UNUSABLE JDAY 139/1415 - UNTIL FURTHER NOTICE
1.     NANU TYPE: UNUSUFN
       NANU NUMBER: 2026042
       NANU DTG: 191416Z MAY 2026
       REFERENCE NANU: N/A
       REF NANU DTG: N/A
       SVN: 79
       PRN: 28
       START JDAY: 139
       START TIME ZULU: 1415
       START CALENDAR DATE: 19 MAY 2026
       STOP JDAY: UFN
       STOP TIME ZULU: N/A
       STOP CALENDAR DATE: N/A

2.  CONDITION: GPS SATELLITE SVN79 (PRN28) WAS UNUSABLE ON JDAY 139
    (19 MAY 2026) BEGINNING 1415 ZULU UNTIL FURTHER NOTICE.

3.  POC: CIVILIAN - NAVCEN AT 866-944-5748, HTTPS://WWW.NAVCEN.USCG.GOV
    MILITARY - GLOBAL WARFIGHTER COLLABORATION CELL at HTTPS://GWCC-WS.CCE.AF.MIL/, DSN 560-2541,
    COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GWCC-WS.CCE.AF.MIL 
    MILITARY ALTERNATE - COMBINED SPACE OPERATIONS CENTER, DSN 276-3526, 
    COMM 805-605-3526, JSPOCCOMBATOPS@SPACEFORCE.MIL