NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2007009 SUBJ: SVN54 (PRN18) FORECAST OUTAGE SUMMARY JDAY 010/2220 - JDAY 011/0816 1 NANU TYPE: FCSTSUMM NANU NUMBER: 2007009 NANU DTG: 110820Z JAN 2007 REFERENCE NANU: 2007003 REF NANU DTG: 052350Z JAN 2007 SVN: 54 PRN: 18 START JDAY: 010 START TIME ZULU: 2220 START CALENDAR DATE: 10 JAN 2007 STOP JDAY: 011 STOP TIME ZULU: 0816 STOP CALENDAR DATE: 11 JAN 2007

1. CONDITION: GPS SATELLITE SVN54 (PRN18) WAS UNUSABLE ON JDAY 010 (10 JAN 2007) BEGINNING 2220 ZULU UNTIL JDAY 011 (11 JAN 2007) ENDING 0816 ZULU

2. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW NAVCEN USCG GOV MILITARY - GPS OPERATIONS CENTER at HTTP://GPS AFSPC AF MIL/GPSOC, DSN 560-2541, COMM 719-567-2541, gps_support@schriever af mil, HTTP://gps afspc af mil/gps MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-9994, COMM 805-606-9994, SPACEAF AOC@VANDENBERG AF MIL

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