NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2019152 SUBJ: SVN34 (PRN18) UNUSABLE JDAY 275/1446 - JDAY 275/1447 1. NANU TYPE: UNUNOREF NANU NUMBER: 2019152 NANU DTG: 021452Z OCT 2019 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 34 PRN: 18 START JDAY: 275 START TIME ZULU: 1446 START CALENDAR DATE: 02 OCT 2019 STOP JDAY: 275 STOP TIME ZULU: 1447 STOP CALENDAR DATE: 02 OCT 2019 2. CONDITION: GPS SATELLITE SVN34 (PRN18) WAS UNUSABLE ON JDAY 275 (02 OCT 2019) BEGINNING 1446 ZULU UNTIL JDAY 275 (02 OCT 2019) ENDING 1447 ZULU. 3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV MILITARY - GPS OPERATIONS CENTER 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 276-3514, COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL