NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2007105 NANU TYPE: GENERAL * GENERAL MESSAGE TO ALL GPS USERS * THE AIR FORCE GPS OPERATIONAL CONTROL SEGMENT WILL TRANSFER CONSTELLATION OPERATIONS FROM THE LEGACY MASTER CONTROL STATION (MCS) TO AN UPGRADED ARCHITECTURE EVOLUTION PLAN (AEP) NEW MASTER CONTROL STATION IN SEPTEMBER DUE TO OPERATIONAL AND SECURITY CONSIDERATIONS, THE SPECIFIC DATES OF THE TRANSITION TO AEP ARE NOT PUBLICALLY RELEASABLE THE PHASED OPERATIONAL TRANSITION WILL MIGRATE EACH SATELLITE, GROUND ANTENNA, MONITOR STATION AND OTHER GPS DATA FEEDS FROM THE MCS TO THE AEP NMCS IN AN INCREMENTAL MANNER GPS USERS EXPERIENCING PROBLEMS SHOULD FOLLOW NORMAL REPORTING PROCEDURES AS OUTLINED BELOW

CIVILIAN USERS - CONTACT USCG NAVIGATION CENTER (NAVCEN) AT COMMERCIAL 703-313-5900, HTTP://WWW NAVCEN USCG GOV

MILITARY USERS - CONTACT THE GPS OPERATIONS CENTER AT DSN 560-2541 OR COMMERCIAL 719-567-2541, HTTP://GPS AFSPC AF MIL/GPSOC ALTERNATE CONTACT FOR MILITARY USERS IS THE JOINT SPACE OPERATIONS CENTER (JSPOC) AT DSN 276-9994 OR COMMERCIAL 805-606-9994, E-MAIL JPSOCCOMBATOPS@VANDENBERG AF MIL

* GENERAL MESSAGE TO ALL GPS USERS *

POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://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, HTTP://gps afspc af mil/gps MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-9994, COMM 805-606-9994, JSPOCCOMBATOPS@VANDENBERG AF MIL

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