NOTICE ADVISORY TO NAVSTAR USERS (NANU) 1999070
SUBJ: SVN27 (PRN27) FORECAST OUTAGE JDAY 147/0430 - JDAY 147/1100
1.     NANU TYPE: FCSTMX
       NANU NUMBER: 1999070
       NANU DTG: 231247Z MAY 1999
       REFERENCE NANU: N/A
       REF NANU DTG: N/A
       SVN: 27
       PRN: 27
       START JDAY: 147
       START TIME ZULU: 0430
       START CALENDAR DATE: 27 MAY 1999
       STOP JDAY: 147
       STOP TIME ZULU: 1100
       STOP CALENDAR DATE: 27 MAY 1999

2.  CONDITION: GPS SATELLITE SVN27 (PRN27) WILL BE UNUSABLE ON JDAY 147
    (27 MAY 1999) BEGINNING 0430 ZULU UNTIL JDAY 147 (27 MAY 1999)
    ENDING 1100 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