SpaceX teams across the United States are readying for what the company’s chief operating officer predicts will be a record number of launches in 2020. Before the end of January, SpaceX aims to perform four Falcon 9 launches from Florida’s Space Coast — three for the company’s Starlink broadband network, and a crucial in-flight abort test for the Crew Dragon spacecraft no earlier than Jan. 11.

The launch of five commercial Iridium message relay satellites and a pair of U.S.-German orbiting geophysics probes on a Falcon 9 rocket from California has been delayed three days to May 22, and a week-long schedule slip to May 31 is expected for the next SpaceX flight from Cape Canaveral with an SES communications payload.

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.