NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010080 SUBJ: SVN53 (PRN17) FORECAST OUTAGE SUMMARY JDAY 117/0319 - JDAY 117/0642 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2010080 NANU DTG: 270647Z APR 2010 REFERENCE NANU: 2010077 REF NANU DTG: 221856Z APR 2010 SVN: 53 PRN: 17 START JDAY: 117 START TIME ZULU: 0319 START CALENDAR DATE: 27 APR 2010 STOP JDAY: 117 STOP TIME ZULU: 0642 STOP CALENDAR DATE: 27 APR 2010 2. CONDITION: GPS SATELLITE SVN53 (PRN17) WAS UNUSABLE ON JDAY 117 (27 APR 2010) BEGINNING 0319 ZULU UNTIL JDAY 117 (27 APR 2010) ENDING 0642 ZULU. 3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://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, HTTPS://gps.afspc.af.mil MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514, COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL