NOTICE ADVISORY TO NAVSTAR USERS (NANU) 1999024
SUBJ: SVN18 (PRN18) FORECAST OUTAGE SUMMARY JDAY 060/1332 - JDAY 060/2157
1.     NANU TYPE: FCSTSUMM
       NANU NUMBER: 1999024
       NANU DTG: 012156Z MAR 1999
       REFERENCE NANU: 1999021
       REF NANU DTG: 192144Z FEB 1999
       SVN: 18
       PRN: 18
       START JDAY: 060
       START TIME ZULU: 1332
       START CALENDAR DATE: 01 MAR 1999
       STOP JDAY: 060
       STOP TIME ZULU: 2157
       STOP CALENDAR DATE: 01 MAR 1999

2.  CONDITION: GPS SATELLITE SVN18 (PRN18) WAS UNUSABLE ON JDAY 060
    (01 MAR 1999) BEGINNING 1332 ZULU UNTIL JDAY 060 (01 MAR 1999)
    ENDING 2157 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