Watch the Falcon 9 launch from pad 39A

SpaceX kicked off its 2019 launch campaign with a mission Friday from Vandenberg Air Force Base in California carrying 10 more upgraded communications satellites into orbit to complete a refresh of Iridium’s voice and data relay network. Liftoff of the Falcon 9 rocket occurred at 7:31 a.m. PST (10:31 a.m. EST; 1531 GMT).

Veteran astronauts Soichi Noguchi and Shannon Walker have been assigned to fly to the International Space Station on SpaceX’s second piloted Crew Dragon mission later this year, joining commander Mike Hopkins and astronaut Victor Glover on a planned six-month expedition in orbit.

The Starlink 6-92 mission also represents the 575th launch of a Falcon 9 rocket to date. SpaceX scheduled liftoff for Monday, Dec. 8, at 5:26 p.m. EST (2226 UTC) following a weather scrub on Sunday.