NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2009042
SUBJ: SVN51 (PRN20) FORECAST OUTAGE JDAY 211/0915 - JDAY 211/2300
1.     NANU TYPE: FCSTDV
       NANU NUMBER: 2009042
       NANU DTG: 240634Z JUL 2009
       REFERENCE NANU: N/A
       REF NANU DTG: N/A
       SVN: 51
       PRN: 20
       START JDAY: 211
       START TIME ZULU: 0915
       START CALENDAR DATE: 30 JUL 2009
       STOP JDAY: 211
       STOP TIME ZULU: 2300
       STOP CALENDAR DATE: 30 JUL 2009

2.  CONDITION: GPS SATELLITE SVN51 (PRN20) WILL BE UNUSABLE ON JDAY 211
    (30 JUL 2009) BEGINNING 0915 ZULU UNTIL JDAY 211 (30 JUL 2009)
    ENDING 2300 ZULU.

3.  POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
    MILITARY - GPS OPERATIONS CENTER at HTTP://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
    COMM 719-567-2541, gps_support@schriever.af.mil, HTTPS://gps.afspc.af.mil
    MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-9994,
    COMM 805-606-9994, JSPOCCOMBATOPS@VANDENBERG.AF.MIL