NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2012038 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS *** The purpose of this notification is to inform users of an upcoming event related to the GPS satellite constellation. The 2nd Space Operations Squadron will be installing new ground software on 19 June 2012 (Julian Date J171). There are no planned GPS satellite outages for this activity, and the broadcast navigation signal will remain IS-GPS-200 compliant.
Any military or civil users who encounter user equipment problems after the install should contact the GPSOC (military), NAVCEN (civil, non-aviation) as soon as possible, or aviation users should file reports consistent with FAA approved procedures.
*** GENERAL MESSAGE TO ALL GPS USERS ***

  POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV
  MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
  COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
  MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN    276-3514,
  COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL