NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2007090 SUBJ: SVN52 (PRN31) FORECAST OUTAGE SUMMARY JDAY 226/1424 - JDAY 226/2130 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2007090 NANU DTG: 142132Z AUG 2007 REFERENCE NANU: 2007086 REF NANU DTG: 101333Z AUG 2007 SVN: 52 PRN: 31 START JDAY: 226 START TIME ZULU: 1424 START CALENDAR DATE: 14 AUG 2007 STOP JDAY: 226 STOP TIME ZULU: 2130 STOP CALENDAR DATE: 14 AUG 2007 2. CONDITION: GPS SATELLITE SVN52 (PRN31) WAS UNUSABLE ON JDAY 226 (14 AUG 2007) BEGINNING 1424 ZULU UNTIL JDAY 226 (14 AUG 2007) ENDING 2130 ZULU. 3. 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