Juggling simultaneous launch campaigns on both coasts, a team of SpaceX engineers put a Falcon 9 rocket through a customary countdown rehearsal and hold-down firing Tuesday at Vandenberg Air Force Base in California ahead of a scheduled liftoff Sunday.

Orbital ATK and SpaceX won Pentagon contracts worth a combined value of up to $241 million Wednesday in public-private partnerships crafted to hasten the U.S. military’s move away from Russian-supplied propulsion to deliver national security satellites to orbit.

After waiting more than a week for good weather, SpaceX launched a Falcon 9 rocket Wednesday from Cape Canaveral with 60 more satellites for the company’s Starlink Internet network, continuing to build out a fleet of fleet of orbiting broadband relay stations that could eventually number in the thousands.