https://techcrunch.com/2018/01/31/watch-spacex-launch-a-flight-proven-falcon-9-live-here/

SpaceX’s launch live stream has already started for its GovSat-1 mission, which is launching a satellite from the government of Luxembourg into geostationary transfer orbit.

The launch window opens at 4:25 PM EST and will not include a recovery attempt for the Falcon 9 first stage, which has been used once before during a mission in 2017.