NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2009024 SUBJ: SVN54 (PRN18) FORECAST OUTAGE SUMMARY JDAY 092/1636 - JDAY 093/0045 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2009024 NANU DTG: 030108Z APR 2009 REFERENCE NANU: 2009022 REF NANU DTG: 261836Z MAR 2009 SVN: 54 PRN: 18 START JDAY: 092 START TIME ZULU: 1636 START CALENDAR DATE: 02 APR 2009 STOP JDAY: 093 STOP TIME ZULU: 0045 STOP CALENDAR DATE: 03 APR 2009 2. CONDITION: GPS SATELLITE SVN54 (PRN18) WAS UNUSABLE ON JDAY 092 (02 APR 2009) BEGINNING 1636 ZULU UNTIL JDAY 093 (03 APR 2009) ENDING 0045 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 276-9994, COMM 805-606-9994, JSPOCCOMBATOPS@VANDENBERG.AF.MIL