NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2008027 SUBJ: SVN25 (PRN25) FORECAST OUTAGE JDAY 077/2200 - JDAY 078/1000 1. NANU TYPE: FCSTMX NANU NUMBER: 2008027 NANU DTG: 122215Z MAR 2008 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 25 PRN: 25 START JDAY: 077 START TIME ZULU: 2200 START CALENDAR DATE: 17 MAR 2008 STOP JDAY: 078 STOP TIME ZULU: 1000 STOP CALENDAR DATE: 18 MAR 2008 2. CONDITION: GPS SATELLITE SVN25 (PRN25) WILL BE UNUSABLE ON JDAY 077 (17 MAR 2008) BEGINNING 2200 ZULU UNTIL JDAY 078 (18 MAR 2008) ENDING 1000 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