Iridium-4 to launch on SpaceX flight proven booster

SpaceX is launching the next 10 satellites for Iridium, a global leader in mobile voice and data communications. Following this launch, it will be the 'halfway-point' for getting all 75 total satellites that SpaceX will be launching for the global Iridium NEXT constellation. SpaceX is currently targeting a launch time of 5:27pm PST or 8:27pm EST tonight during an instantaneous launch window. Iridium-4 will launch from California's Vandenberg Air Force Base at Space Launch Complex 4E (SLC-4E) and will not attempt a recovery of the first stage. This Falcon 9 previously launched the Iridium-2 mission back in June, making Iridium the first company to reuse a booster from their previous missions. This launch will be the last rocket launch until the new year, starting with launching 'Zuma' in early January. 

The payload for the launch are a set of 10 Iridium NEXT satellites that will replace the world's largest commercial satellite network and will be one of the latest tech upgrades in history.  Thales Alenia Space has assisted in the manufacturing, assembly, and testing of all 81 Iridium satellites. The new constellation of satellites will provide faster speeds for aviation, maritime, and internet. Iridium is the only mobile voice and data communications network that spans the entire globe and it enabled real-time connections between people and assets to and from everywhere.