A SATELLITE SYSTEM THAT HAS BEEN USED BY THE U.S. NAVY
A SATELLITE SYSTEM THAT HAS BEEN USED BY THE U.S. NAVY to provide precise, all-weather navigation fixes will be shut down Dec. 31. The Transit system was invented in 1958 based on the tracking of Doppler signals from Russia's Sputnik 1 satellite. Transit became operational in 1964 and was made...
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