NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2002031
SUBJ: SVN23 (PRN23) FORECAST OUTAGE SUMMARY JDAY 052/2240 - JDAY 053/0407
1.     NANU TYPE: FCSTSUMM
       NANU NUMBER: 2002031
       NANU DTG: 220419Z FEB 2002
       REFERENCE NANU: 2002027
       REF NANU DTG: 132231Z FEB 2002
       SVN: 23
       PRN: 23
       START JDAY: 052
       START TIME ZULU: 2240
       START CALENDAR DATE: 21 FEB 2002
       STOP JDAY: 053
       STOP TIME ZULU: 0407
       STOP CALENDAR DATE: 22 FEB 2002

2.  CONDITION: GPS SATELLITE SVN23 (PRN23) WAS UNUSABLE ON JDAY 052
    (21 FEB 2002) BEGINNING 2240 ZULU UNTIL JDAY 053 (22 FEB 2002)
    ENDING 0407 ZULU.

3.  POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.GOV
    MILITARY - CAPT HERB KNIERIM, 2 SOPS NAVIGATION ANALYST, DSN 560-6614,
    COMM 719-567-6614, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS