TAG: GPS modernization

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The System: Next GPS IIF in October

September 10, 2012

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Next GPS IIF Satellite Launch Expected October 4

August 20, 2012

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The System: GPS III Endures Bad Press, IIAs an OCX Concern

May 1, 2012

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U.S. Air Force Awards Contract to Lockheed Martin for GPS III Launch, Checkout

January 11, 2012

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The System: EGNOS Toolkits Enhance GPS Accuracy

December 1, 2011

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The System: GLONASS Forecast Bright and Plentiful

October 1, 2010

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Air Force to Respond to GAO Report on GPS

September 24, 2010

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Figure 1. Left, the orbit path of three QZSS satellites will eventually keep at least one of them directly over Japan at all times. Right, the inclined geosynchronous orbit of the fifth Compass satellite, launched in July, has a similar ground track and mission goal.

The System: Michibiki Takes Up Station and Other GNSS Constellation Updates

September 1, 2010

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