NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2013023 SUBJ: SVN54 (PRN18) FORECAST OUTAGE JDAY 094/1115 - JDAY 094/2315 1 NANU TYPE: FCSTDV NANU NUMBER: 2013023 NANU DTG: 291539Z MAR 2013 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 54 PRN: 18 START JDAY: 094 START TIME ZULU: 1115 START CALENDAR DATE: 04 APR 2013 STOP JDAY: 094 STOP TIME ZULU: 2315 STOP CALENDAR DATE: 04 APR 2013

1. CONDITION: GPS SATELLITE SVN54 (PRN18) WILL BE UNUSABLE ON JDAY 094 (04 APR 2013) BEGINNING 1115 ZULU UNTIL JDAY 094 (04 APR 2013) ENDING 2315 ZULU

2. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://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

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