SpaceX is targeting Friday, May 19 at 6:19 a.m. PT (13:19 UTC) for launch of the Iridium OneWeb mission to a low-Earth orbit from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California. A backup launch opportunity is available on Saturday, May 20 at 6:15 a.m. PT (13:15 UTC). The Falcon 9 first stage booster supporting this mission previously launched Sentinel-6 Michael Freilich, DART, Transporter-7, and seven Starlink missions. After stage separation, the first stage will land on the Of Course I Still Love You droneship, which will be stationed in the Pacific Ocean.