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Live coverage: Proton rocket set for launch with two U.S.-built satellites

Live coverage of the countdown and launch of a Proton rocket from the Baikonur Cosmodrome in Kazakhstan with the Eutelsat 5 West B television broadcasting satellite and the first Mission Extension Vehicle satellite servicing spacecraft. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.

A live webcast of the Proton launch will be available on this page beginning at 6 a.m. EDT (1000 GMT) Wednesday.

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