A total of 11 spacecraft will be deployed beginning about 1.5 hours after liftoff. SpaceX is aiming to launch the mission from pad 4 East at Vandenberg Space Force Base on July 23 at 11:13 a.m. PDT (2:13 p.m. EDT, 1813 UTC).
NASA has selected two satellite missions for launch on the same rocket in 2022 to investigate the origins of the solar wind and explore the interaction between magnetic fields around Earth with those from the sun.