NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2026027 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
Correction to NANU 2026026

Testing will be occurring through CY 2026 using PRNs 35 and 36 on residual SVs broadcasting UNHEALTHY navigation messages.
*** GENERAL MESSAGE TO ALL GPS USERS ***

   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 - JOINT SPACE OPERATIONS CENTER, DSN    276-3526, 
   COMM 805-605-3526, JSPOCCOMBATOPS@SPACEFORCE.MIL