The mission will send the first full batch of 27 operational satellites into low Earth orbit. United Launch Alliance will launch its Atlas 5 551 rocket from pad 41 at Cape Canaveral Space Force Station on April 9 during a three-hour window that opens at 12 p.m. EDT (1600 UTC).
This will be the 12th launch of the year from Vandenberg Space Force Base. Liftoff from Space Launch Complex 4 East happened on Thursday, April 3, at 6:02 p.m. PDT (9:02 p.m. EDT, 0102 UTC).