The update comes after NASA said it and Boeing completed ground hot fire testing of a reaction control system (RCS) to better understand some of the in-flight anomalies seen during the spacecraft’s rendezvous and docking with the International Space Station.

SpaceX rolled out a reused Falcon 9 booster for a hold-down engine firing Wednesday at pad 40 at Cape Canaveral Air Force Station, making the first use of the launch complex since a rocket exploded there in September 2016. The static fire test accomplished Wednesday was a key step in preparations for launch of a space station cargo ship Dec. 12.

The first launch of a U.S. Space Force mission since the establishment of the new military service is planned Thursday, when a United Launch Alliance Atlas 5 rocket is set for liftoff from Cape Canaveral with a billion-dollar jam-resistant communications satellite designed to ensure national leaders remain connected with the armed forces.