NOTICE ADVISORY TO NAVSTAR USERS (NANU) 1998074
SUBJ: SVN23 (PRN23) FORECAST OUTAGE JDAY 146/2150 - JDAY 147/0950
1.     NANU TYPE: FCSTMX
       NANU NUMBER: 1998074
       NANU DTG: 081827Z MAY 1998
       REFERENCE NANU: N/A
       REF NANU DTG: N/A
       SVN: 23
       PRN: 23
       START JDAY: 146
       START TIME ZULU: 2150
       START CALENDAR DATE: 26 MAY 1998
       STOP JDAY: 147
       STOP TIME ZULU: 0950
       STOP CALENDAR DATE: 27 MAY 1998

2.  CONDITION: GPS SATELLITE SVN23 (PRN23) WILL BE UNUSABLE ON JDAY 146
    (26 MAY 1998) BEGINNING 2150 ZULU UNTIL JDAY 147 (27 MAY 1998)
    ENDING 0950 ZULU.

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