NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010045 NANU TYPE: GENERAL * GENERAL MESSAGE TO ALL GPS USERS Reference NANU 2010041 This is a reminder of an upcoming event related to the GPS satellite constellation The 2nd Space Operations Squadron will be installing a ground software upgrade on 5 March 2010 (J064) There are no planned GPS satellite outages for this activity, and the broadcast navigation signal will remain IS-GPS-200 compliant If military or civil users encounter any user equipment problems they feel are related to this minor software change, please call the GPSOC (military) or NAVCEN (civil) immediately 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

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