NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2007107 SUBJ: SVN53 (PRN17) UNUSABLE JDAY 258/1250 - JDAY 258/1613 1 NANU TYPE: UNUSABLE NANU NUMBER: 2007107 NANU DTG: 151613Z SEP 2007 REFERENCE NANU: 2007106 REF NANU DTG: 151307Z SEP 2007 SVN: 53 PRN: 17 START JDAY: 258 START TIME ZULU: 1250 START CALENDAR DATE: 15 SEP 2007 STOP JDAY: 258 STOP TIME ZULU: 1613 STOP CALENDAR DATE: 15 SEP 2007

1. CONDITION: GPS SATELLITE SVN53 (PRN17) WAS UNUSABLE ON JDAY 258 (15 SEP 2007) BEGINNING 1250 ZULU UNTIL JDAY 258 (15 SEP 2007) ENDING 1613 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, JSPOCCOMBATOPS@VANDENBERG AF MIL

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