While neither company has released details, an advisory by the Federal Aviation Administration (FAA) shows that the Optus-X satellite is set to liftoff atop a Falcon 9 during a window open from from 4:29-6:57 p.m. EST. The launch will be from Cape Canaveral Space Launch Complex 40, and travel on a due-east trajectory.

SpaceX crews are preparing to launch a Falcon 9 rocket Thursday morning from Florida’s Space Coast. SpaceX is planning to launch another batch of Starlink satellites at 8:21 a.m. from Space Launch Complex 40 at the Cape Canaveral Space Force Station.