NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2019156 SUBJ: SVN34 (PRN18) FORECAST OUTAGE JDAY 280/2000 - UNTIL FURTHER NOTICE 1. NANU TYPE: FCSTUUFN NANU NUMBER: 2019156 NANU DTG: 032211Z OCT 2019 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 34 PRN: 18 START JDAY: 280 START TIME ZULU: 2000 START CALENDAR DATE: 07 OCT 2019 STOP JDAY: UFN STOP TIME ZULU: N/A STOP CALENDAR DATE: N/A 2. CONDITION: GPS SATELLITE SVN34 (PRN18) WILL BE UNUSABLE NO EARLIER THAN JDAY 280 (07 OCT 2019) BEGINNING 2000 ZULU UNTIL FURTHER NOTICE. 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