NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2000052
SUBJ: SVN31 (PRN31) UNUSABLE JDAY 103/2203 - JDAY 104/1138
1.     NANU TYPE: UNUSABLE
       NANU NUMBER: 2000052
       NANU DTG: 131108Z APR 2000
       REFERENCE NANU: 2000051
       REF NANU DTG: 122321Z APR 2000
       SVN: 31
       PRN: 31
       START JDAY: 103
       START TIME ZULU: 2203
       START CALENDAR DATE: 12 APR 2000
       STOP JDAY: 104
       STOP TIME ZULU: 1138
       STOP CALENDAR DATE: 13 APR 2000

2.  CONDITION: GPS SATELLITE SVN31 (PRN31) WAS UNUSABLE ON JDAY 103
    (12 APR 2000) BEGINNING 2203 ZULU UNTIL JDAY 104 (13 APR 2000)
    ENDING 1138 ZULU.

3.  POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.MIL
    MILITARY - CAPT PAUL HERMANN, 2 SOPS NAVIGATION ANALYST, DSN 560-6378,
    COMM 719-567-6378, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS