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The Mobile User Objective System, or MUOS, is a constellation of geostationary communications satellites operated by the US Navy. Consisting of five spacecraft – MUOS is a replacement for the earlier UHF Follow-On (UFO) programme and will provide video, voice and data communications to mobile terminals with near-global coverage.

The satellites provide two services, a legacy UHF communications system to provide continuity for users of the UFO satellites and a new, more advanced service: Wideband Code Division Multiple Access (WCDMA).

MUOS’ WCDMA capabilities only require four of the five satellites, so in this role MUOS-5 will serve as a reserve satellite; however its UHF payload will be fully operational.

Alternate Names

    Facts in Brief

    Launch Date: 2016-06-24
    Launch Vehicle: Atlas V
    Launch Site: Cape Canaveral, United States

    Funding Agency

    • United States Naval Academy (United States)


    • Communications

    Additional Information

    Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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