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Geosynchronous


1965 Intelsat 1 ("Early Bird") 1st coml geosynchronous communication satellite

1965 Syncom 3, 1st geosynchronous communications satellite, passes from civilian to military control

1963 U.S. Syncom 2, 1st geosynchronous communications satellite, launched

1962 Telstar, 1st geosynchronous communications satellite, launched

1945 Arthur C. Clark proposes relay satellites in geosynchronous orbit



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