The four crew members of NASA’s SpaceX Crew-12 mission began their routine two-week quarantine on Wednesday at NASA’s Johnson Space Center in Houston ahead of their upcoming launch to the International Space Station.

SpaceX launched an advanced, jam-resistant GPS satellite for the U.S. Space Force from Florida on Tuesday night (Jan. 27).

Crew-12 will fly to the orbiting laboratory aboard a SpaceX Dragon spacecraft, launched on a Falcon 9 rocket from Cape Canaveral Space Force Station in Florida. NASA says it is reviewing options to move the launch earlier than its original target date of Sunday, Feb. 15.