NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2002021
SUBJ: SVN54 (PRN18) FORECAST OUTAGE SUMMARY JDAY 031/1901 - JDAY 031/2115
1.     NANU TYPE: FCSTSUMM
       NANU NUMBER: 2002021
       NANU DTG: 312125Z JAN 2002
       REFERENCE NANU: 2002017
       REF NANU DTG: 231434Z JAN 2002
       SVN: 54
       PRN: 18
       START JDAY: 031
       START TIME ZULU: 1901
       START CALENDAR DATE: 31 JAN 2002
       STOP JDAY: 031
       STOP TIME ZULU: 2115
       STOP CALENDAR DATE: 31 JAN 2002

2.  CONDITION: GPS SATELLITE SVN54 (PRN18) WAS UNUSABLE ON JDAY 031
    (31 JAN 2002) BEGINNING 1901 ZULU UNTIL JDAY 031 (31 JAN 2002)
    ENDING 2115 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