NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023060 SUBJ: SVN45 (PRN21) FORECAST OUTAGE SUMMARY JDAY 286/0646 - JDAY 286/1147 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2023060 NANU DTG: 131154Z OCT 2023 REFERENCE NANU: 2023058 REF NANU DTG: 060308Z OCT 2023 SVN: 45 PRN: 21 START JDAY: 286 START TIME ZULU: 0646 START CALENDAR DATE: 13 OCT 2023 STOP JDAY: 286 STOP TIME ZULU: 1147 STOP CALENDAR DATE: 13 OCT 2023 2. CONDITION: GPS SATELLITE SVN45 (PRN21) WAS UNUSABLE ON JDAY 286 (13 OCT 2023) BEGINNING 0646 ZULU UNTIL JDAY 286 (13 OCT 2023) ENDING 1147 ZULU. 3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541, COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526. JSPOCCOMBATOPS@US.AF.MIL