SpaceX's Falcon 9 rocket will deliver the Inmarsat-5 F4 commercial communications satellite to a geostationary transfer orbit.
SpaceX is targeting the launch of Inmarsat-5 F4 from Complex 39A at NASA's Kennedy Space Center, Florida. A 51-minute window opens on Monday, May 15, at 7:20 p.m. EDT (23:20 GMT). A backup launch window opens on Tuesday, May 16 at the same time.
Inmarsat-5 F4 is the fourth satellite in the Global Xpress constellation; the first globally available, high-speed, mobile broadband service.
SpaceX will not attempt to land Falcon 9's first stage after launch due to mission requirements.