SpaceX's Falcon 9 rocket will deliver 10 satellites to low Earth orbit for Iridium. This is the second set of 10 satellites in a series of 75 total satellites that SpaceX will launch for Iridium's next generation global satellite constellation, Iridium NEXT.
The Iridium 2 mission will launch from Space Launch Complex 4E at Vandenberg Air Force Base in California in an instantaneous launch window.
The satellites will be deployed about an hour after launch.
Following separation, the Falcon 9 first stage will attempt a landing on the droneship "Just Read the Instructions" in the Pacific Ocean.