NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2001011
SUBJ: SVN21 (PRN21) FORECAST OUTAGE JDAY 019/1400 - JDAY 020/0200
1.     NANU TYPE: FCSTMX
       NANU NUMBER: 2001011
       NANU DTG: 122007Z JAN 2001
       REFERENCE NANU: N/A
       REF NANU DTG: N/A
       SVN: 21
       PRN: 21
       START JDAY: 019
       START TIME ZULU: 1400
       START CALENDAR DATE: 19 JAN 2001
       STOP JDAY: 020
       STOP TIME ZULU: 0200
       STOP CALENDAR DATE: 20 JAN 2001

2.  CONDITION: GPS SATELLITE SVN21 (PRN21) WILL BE UNUSABLE ON JDAY 019
    (19 JAN 2001) BEGINNING 1400 ZULU UNTIL JDAY 020 (20 JAN 2001)
    ENDING 0200 ZULU.

3.  POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.MIL
    MILITARY - 1LT HERB KNIERIM, 2 SOPS NAVIGATION ANALYST, DSN 560-2744,
    COMM 719-567-2744, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS