Photo: Joel Kowsky · Public domain (US government)

Atlas V 551 | MUOS-4

Success ULA, Atlas V 551

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Mission

Government/Top Secret · GTO

MUOS-4 is the fourth in a Lockheed Martin-built, five-ship fleet for a next-generation, narrowband tactical military satellite communications system.

Where to watch

Replay Launch webcast

Remind me

Before liftoff
Also notify me of

If the launch moves, your reminders move with it, and at the time of your first reminder we tell you the new date.