Update: LIFTOFF of Falcon 9 with the Air Force's GPS satellite at 8:51 a.m. ET!

Watch live and join the chat below as SpaceX targets 8:51 a.m. Sunday for the launch of a Falcon 9 rocket and Air Force GPS satellite from Cape Canaveral. There will be no landing attempt today.

More:How to watch SpaceX's first-ever GPS satellite launch from Florida

Things to know about this mission:Don't miss the last Florida rocket launch of the year

Launch schedule:Mark your calendar for these Florida rocket launches and landings

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