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The three satellites were all launched in 1976. MARISAT F1 was launched on 19 February 1976, MARISAT F2 was launched on 10 June 1976, and Marisat F3 was launched at 22:44 GMT, 14 October 1976. Launch vehicle for the satellites was the McDonnell Douglas 2914 Delta rocket. The satellites were launched from Cape Canaveral by the National Aeronautics and Space Administration under contract with COMSAT. In 1981 the INMARSAT took over from the Marisat system.