NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010068 NANU TYPE: GENERAL 
*** GENERAL MESSAGE TO ALL GPS USERS ***
THE 50TH SPACE WING IN COOPERATION WITH THE GLOBAL POSITIONING SYSTEMS WING, WILL BE TESTING SVN49 (PRN01) SIGNAL CHARACTERIZATION OVER THE NEXT 6 MONTHS.  SVN49 (PRN01) WILL REMAIN UNHEALTHY UNTIL FURTHER NOTICE, AND THE BROADCAST NAVIGATION MESSAGE WILL REMAIN IS-GPS-200 COMPLIANT.  USERS CHOOSING TO TRACK AN UNHEALTHY SVN49 (PRN01) SHOULD CONTACT GPSOC (MILITARY) OR NAVCEN (CIVIL) IMMEDIATELY FOR ANY ISSUES THAT MAY BE ATTRIBUTED TO THESE ACTIVITIES.
*** GENERAL MESSAGE TO ALL GPS USERS ***

   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    276-3514, 
     COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL