NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2003025 SUBJ: SVN54 (PRN18) FORECAST OUTAGE JDAY 071/1345 - JDAY 072/0245 1. NANU TYPE: FCSTDV NANU NUMBER: 2003025 NANU DTG: 051457Z MAR 2003 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 54 PRN: 18 START JDAY: 071 START TIME ZULU: 1345 START CALENDAR DATE: 12 MAR 2003 STOP JDAY: 072 STOP TIME ZULU: 0245 STOP CALENDAR DATE: 13 MAR 2003 2. CONDITION: GPS SATELLITE SVN54 (PRN18) WILL BE UNUSABLE ON JDAY 071 (12 MAR 2003) BEGINNING 1345 ZULU UNTIL JDAY 072 (13 MAR 2003) ENDING 0245 ZULU. 3. POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.GOV MILITARY - GPS Support Center, DSN 560-2541, COMM 719-567-2493, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS