Today's launch of a Falcon 9 rocket from Vandenberg AFB appears to be on schedule. Liftoff is set for 10:31:47 a.m. PST, the start of a 30-minute launch window. For countdown status and live video of the launch, go to: https://spaceflightnow.com/2018/12/02/falcon-9-sso-a-mission-status-center/ www.spacex.com/webcast