NOTICE ADVISORY TO NAVSTAR USERS (NANU) 1999050
SUBJ: SVN37 (PRN07) UNUSABLE JDAY 110/0437 - JDAY 116/1533
1.     NANU TYPE: UNUSABLE
       NANU NUMBER: 1999050
       NANU DTG: 261552Z APR 1999
       REFERENCE NANU: 1999044
       REF NANU DTG: 200656Z APR 1999
       SVN: 37
       PRN: 07
       START JDAY: 110
       START TIME ZULU: 0437
       START CALENDAR DATE: 20 APR 1999
       STOP JDAY: 116
       STOP TIME ZULU: 1533
       STOP CALENDAR DATE: 26 APR 1999

2.  CONDITION: GPS SATELLITE SVN37 (PRN07) WAS UNUSABLE ON JDAY 110
    (20 APR 1999) BEGINNING 0437 ZULU UNTIL JDAY 116 (26 APR 1999)
    ENDING 1533 ZULU.

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