Plans for GPS constellation realignment

From: Ralph McConahy (
Date: Mon Apr 19 2010 - 22:59:42 UTC

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    "U.S. Air Force officials are in the midst of a GPS constellation realignment designed to improve service to users in canyons, including operators in the rugged terrain of Afghanistan or among the skyscrapers of cities such as New York. 
    The goal of the so-called 24-plus-3 strategy is to increase the number of satellites transmitting to receivers, says Col. David Buckman, chief of precision navigation and timing for Air Force Space Command."
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