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News & Press

Upcoming Missions

Atlas V to Launch the Fourth Mobile User Objective System (MUOS-4)

Atlas V MUOS-4 Mission Overview

Atlas V MUOS-4 Mission ArtworkRocket/Payload: A United Launch Alliance Atlas V 551 will launch the U.S. Navy’s fourth Mobile User Objective System (MUOS-4) satellite, built by Lockheed Martin.

Date/Site/Launch Time: Wednesday, Sept. 2, from Space Launch Complex-41 at Cape Canaveral Air Force Station, Florida. The 44-minute launch window opens at 5:59 a.m. EDT.

Webcast: The live broadcast will begin at 5:39 a.m. EDT.

Atlas V MUOS-4 Webcast Coordinates

Mission Description: The Navy’s Mobile User Objective System (MUOS) is a next-generation narrowband tactical satellite communications system designed using a combination of orbiting satellites and relay ground stations to significantly improve communications for U.S. forces on the move. MUOS will provide new beyond-line-of-sight secure communications capabilities, with smartphone-like simultaneous voice, video and data – to connect military users almost anywhere around the globe.

Launch Notes: MUOS-4 will mark the 56th Atlas V since the vehicle’s inaugural launch in August 2002 and the sixth in the 551 configuration. Previous missions launched on Atlas V 551 missions include three MUOS missions as well as the New Horizons mission to Pluto and the Juno mission to Jupiter.

Launch Updates: To keep up to speed with updates to the launch countdown, dial the ULA launch hotline at 1-877-852-4321 or join the conversation at www.facebook.com/ulalaunch, twitter.com/ulalaunch and instagram.com/ulalaunch. Hashtags: #MUOS #AtlasV

Go Atlas! Go Centaur! Go MUOS-4!



July 23, 2015: A United Launch Alliance (ULA) Delta IV rocket lifts off carrying the seventh Wideband Global SATCOM satellite for the U.S. Air Force. Wideband Global SATCOM provides anytime, anywhere communication for the warfighter through broadcast, multicast and point to point connections.