NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2015033 SUBJ: SVN54 (PRN18) FORECAST OUTAGE SUMMARY JDAY 121/0031 - JDAY 121/0533 1 NANU TYPE: FCSTSUMM NANU NUMBER: 2015033 NANU DTG: 010552Z MAY 2015 REFERENCE NANU: 2015031 REF NANU DTG: 241901Z APR 2015 SVN: 54 PRN: 18 START JDAY: 121 START TIME ZULU: 0031 START CALENDAR DATE: 01 MAY 2015 STOP JDAY: 121 STOP TIME ZULU: 0533 STOP CALENDAR DATE: 01 MAY 2015

1. CONDITION: GPS SATELLITE SVN54 (PRN18) WAS UNUSABLE ON JDAY 121 (01 MAY 2015) BEGINNING 0031 ZULU UNTIL JDAY 121 (01 MAY 2015) ENDING 0533 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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