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Operated by the United States Navy, the Mobile User Objective System (MUOS) is a successor to the UHF Follow-On (UFO) satellites launched between 1993 and 2003. Itself a successor to the earlier FLTSATCOM and Leasat constellations, the UFO series consisted of eleven satellites constructed by Hughes and later Boeing, which were deployed by Atlas I, II and III rockets.

Once complete the MUOS constellation will consist of five satellites; the last of which is scheduled for launch in July 2016. The prime contractor for the programme is Lockheed Martin, who have based the spacecraft around the A2100M bus.

Alternate Names

  • 40374
  • MUOS3

Facts in Brief

Launch Date: 2015-01-21
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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