NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2003052 SUBJ: SVN23 (PRN23) FORECAST OUTAGE JDAY 147/2100 - JDAY 148/0900 1. NANU TYPE: FCSTDV NANU NUMBER: 2003052 NANU DTG: 231342Z MAY 2003 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 23 PRN: 23 START JDAY: 147 START TIME ZULU: 2100 START CALENDAR DATE: 27 MAY 2003 STOP JDAY: 148 STOP TIME ZULU: 0900 STOP CALENDAR DATE: 28 MAY 2003 2. CONDITION: GPS SATELLITE SVN23 (PRN23) WILL BE UNUSABLE ON JDAY 147 (27 MAY 2003) BEGINNING 2100 ZULU UNTIL JDAY 148 (28 MAY 2003) ENDING 0900 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