NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2026029 SUBJ: SVN79 (PRN28) FORECAST OUTAGE SUMMARY JDAY 085/1513 - JDAY 085/2133 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2026029 NANU DTG: 270341Z MAR 2026 REFERENCE NANU: 2026028 REF NANU DTG: 202108Z MAR 2026 SVN: 79 PRN: 28 START JDAY: 085 START TIME ZULU: 1513 START CALENDAR DATE: 26 MAR 2026 STOP JDAY: 085 STOP TIME ZULU: 2133 STOP CALENDAR DATE: 26 MAR 2026 2. CONDITION: GPS SATELLITE SVN79 (PRN28) WAS UNUSABLE ON JDAY 085 (26 MAR 2026) BEGINNING 1513 ZULU UNTIL JDAY 085 (26 MAR 2026) ENDING 2133 ZULU. 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