NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2006018 SUBJ: SVN51 (PRN20) FORECAST OUTAGE SUMMARY JDAY 061/2239 - JDAY 062/0509 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2006018 NANU DTG: 030508Z MAR 2006 REFERENCE NANU: 2006016 REF NANU DTG: 242047Z FEB 2006 SVN: 51 PRN: 20 START JDAY: 061 START TIME ZULU: 2239 START CALENDAR DATE: 02 MAR 2006 STOP JDAY: 062 STOP TIME ZULU: 0509 STOP CALENDAR DATE: 03 MAR 2006 2. CONDITION: GPS SATELLITE SVN51 (PRN20) WAS UNUSABLE ON JDAY 061 (02 MAR 2006) BEGINNING 2239 ZULU UNTIL JDAY 062 (03 MAR 2006) ENDING 0509 ZULU. 3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV MILITARY - GPS OPERATIONS CENTER at HTTP://WWW.SCHRIEVER.AF.MIL/GPSSUPPORTCENTER, DSN 560-2541, COMM 719-567-2541, gps_support@schriever.af.mil, HTTP://WWW.SCHRIEVER.AF.MIL/GPS MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-9994, COMM 805-606-9994, SPACEAF.AOC@VANDENBERG.AF.MIL