The US Navy launched the fourth Mobile User Objective System (MUOS) communications satellite on 2 September from Cape Canaveral, Florida, providing worldwide satellite communications (satcom) coverage that will also extend from the North to South poles. The launch represents the completion of the MUOS operational constellation. There are currently three on-orbit and operational MUOS satellites. The fifth and final satellite (which serves as an on-orbit spare) is set to be launched in 2016.
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