NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2019039 SUBJ: SVN34 (PRN18) UNUSABLE JDAY 079/1334 - JDAY 079/1336 1. NANU TYPE: UNUNOREF NANU NUMBER: 2019039 NANU DTG: 201338Z MAR 2019 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 34 PRN: 18 START JDAY: 079 START TIME ZULU: 1334 START CALENDAR DATE: 20 MAR 2019 STOP JDAY: 079 STOP TIME ZULU: 1336 STOP CALENDAR DATE: 20 MAR 2019 2. CONDITION: GPS SATELLITE SVN34 (PRN18) WAS UNUSABLE ON JDAY 079 (20 MAR 2019) BEGINNING 1334 ZULU UNTIL JDAY 079 (20 MAR 2019) ENDING 1336 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