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VideoAtlas 5 launch timeline for the AEHF 6 mission
A United Launch Atlas 5 rocket is set to launch the U.S. Air Force's sixth and final Advanced Extremely High Frequency communications satellite from Cape Canaveral. This timeline shows the major mission events planned over a nearly six-hour flight to an optimized geostationary transfer orbit.
VideoLive coverage: Atlas 5 rocket lifts off from Cape Canaveral
A United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral at 4:18 p.m. EDT (2018 GMT), following a delay of more than an hour to troubleshoot a ground hydraulics controller. The Atlas 5 launched with the U.S. military's sixth Advanced Extremely High Frequency strategic communications satellite.