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Summary: The global positioning system is made up of 24 Rockwell manufactured satellites, and 5 ground stations located in Hawaii, Ascension Island, Diego Garcia, Kwajalein, and Colorado Springs. A GPS can locate a lost vessel at sea, keep track of trucking and transportation services, control movement of vessels at sea, aid in crop dusting, help take aerial photographs, hone flight
Image Dimensions: 115 x 86
Image originally found here.