NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2008051 SUBJ: SVN25 (PRN25) FORECAST OUTAGE JDAY 159/1700 - JDAY 160/0500 1. NANU TYPE: FCSTMX NANU NUMBER: 2008051 NANU DTG: 021944Z JUN 2008 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 25 PRN: 25 START JDAY: 159 START TIME ZULU: 1700 START CALENDAR DATE: 07 JUN 2008 STOP JDAY: 160 STOP TIME ZULU: 0500 STOP CALENDAR DATE: 08 JUN 2008 2. CONDITION: GPS SATELLITE SVN25 (PRN25) WILL BE UNUSABLE ON JDAY 159 (07 JUN 2008) BEGINNING 1700 ZULU UNTIL JDAY 160 (08 JUN 2008) ENDING 0500 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 MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-9994, COMM 805-606-9994, JSPOCCOMBATOPS@VANDENBERG.AF.MIL