NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2000019
SUBJ: SVN18 (PRN18) FORECAST OUTAGE SUMMARY JDAY 025/0836 - JDAY 025/2144
1.     NANU TYPE: FCSTSUMM
       NANU NUMBER: 2000019
       NANU DTG: 252149Z JAN 2000
       REFERENCE NANU: 2000018
       REF NANU DTG: 251857Z JAN 2000
       SVN: 18
       PRN: 18
       START JDAY: 025
       START TIME ZULU: 0836
       START CALENDAR DATE: 25 JAN 2000
       STOP JDAY: 025
       STOP TIME ZULU: 2144
       STOP CALENDAR DATE: 25 JAN 2000

2.  CONDITION: GPS SATELLITE SVN18 (PRN18) WAS UNUSABLE ON JDAY 025
    (25 JAN 2000) BEGINNING 0836 ZULU UNTIL JDAY 025 (25 JAN 2000)
    ENDING 2144 ZULU.

3.  POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.MIL
    MILITARY - CAPT PAUL HERMANN, 2 SOPS NAVIGATION ANALYST, DSN 560-6393,
    COMM 719-567-6393, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS