Newtown PA (SPX) Sep 04, 2009 -
The last in a series of eight modernized Global Positioning System IIR (GPS IIR-M) satellites built by Lockheed Martin has been declared operational by the U.S. Air Force for military and civilian navigation users around the globe.
http://www.gpsdaily.com/reports/Latest_Lockheed_Martin_Built_GPS_Satellite_Begins_Operations_999.html
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