Last GPS IIR Slated For Liftoff
The last of the eight Global Positioning System Block IIR satellites—GPS-IIR21 (M)—is due for liftoff Aug. 17 from Cape Canaveral AFS, Fla. Launch will be on board the last Delta II purchased by the U.S. Air Force. The eight satellites were upgraded from a series of 21 built by Lockheed Martin with...
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