09:49 GMT01 December 2020
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    The US Navy's fifth Mobile User Objective System (MUOS) satellite has been launched atop an Atlas V rocket from the Cape Canaveral Air Force Station in Florida, a United Launch Alliance broadcast showed on Friday.

    WASHINGTON (Sputnik) — The rocket was launched at 14:30 GMT. Three minutes after the launch, the United Launch Alliance commentator said that all systems are functioning well.

    The satellite will complete the MUOS system and provide the US Navy with improved communications, its capacity 10 times above the previous-generation system.

    The Atlas V rocket's first stage is fitted with a Russian-built RD-180 engine that runs on kerosene and liquid oxygen, while its upper stage is fitted with an American-built RL10 engine that runs on liquid hydrogen and liquid oxygen.

    Friday's successful launch followed the incident on March 22, when the Atlas V launcher’s first stage RD-180 engine cut off 6 seconds earlier than planned, triggering a longer burn by the upper stage engine to compensate for the loss of thrust and velocity.

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    Tags:
    Atlas V rocket, US
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