Live coverage: SpaceX counting down to launch of GPS navigation satellite

Live coverage of the countdown and launch of a SpaceX Falcon 9 rocket from Cape Canaveral Air Force Station in Florida with the U.S. Air Force’s GPS 3 SV03 navigation satellite. Text updates will appear automatically below. Follow us on Twitter.

SpaceX’s live video webcast begins around 15 minutes prior to launch, and will be available on this page.

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