"Liftoff!" SpaceX said on Twitter on Sunday, adding in a later post that the first payload deployment is expected within hours.
The Falcon Heavy carrier rocket was launched from NASA’s Kennedy Space Center in Florida at 8:26 p.m. on Sunday (00:26 GMT on Monday), following days of delay due to unfavorable weather conditions.
Apart from ViaSat-3 Americas, a 14,000-pound broadband satellite that will be operated by California-based company Viasat, the mission’s payload includes Astranis's first MicroGEO satellite and Gravity Space’s GS-1 satellite.