GPS Satellites - 1 views

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#1 Sean Jackson on 06 Feb 13http://www.gps.gov/systems/gps/space/
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#2 Sean Jackson on 06 Feb 13This site gives does a great job dividing the interest in satellites between current use and future use, explaining how satellites are expected to change to fit, or better meet, our needs. This site also explains specific constellations and orbits in use.
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