NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2024064 SUBJ: SVN45 (PRN21) FORECAST OUTAGE SUMMARY JDAY 346/1101 - JDAY 348/1908 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2024064 NANU DTG: 131916Z DEC 2024 REFERENCE NANU: 2024060 REF NANU DTG: 031836Z DEC 2024 SVN: 45 PRN: 21 START JDAY: 346 START TIME ZULU: 1101 START CALENDAR DATE: 11 DEC 2024 STOP JDAY: 348 STOP TIME ZULU: 1908 STOP CALENDAR DATE: 13 DEC 2024 2. CONDITION: GPS SATELLITE SVN45 (PRN21) WAS UNUSABLE ON JDAY 346 (11 DEC 2024) BEGINNING 1101 ZULU UNTIL JDAY 348 (13 DEC 2024) ENDING 1908 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