Proton Resumes Flight After July Launch Failure

By Amy Svitak
Source: Aviation Week & Space Technology
October 07, 2013

Russia's Proton M launch vehicle returned to flight Sept. 30, nearly two months after a July 2 mishap sent the heavy-lift rocket and three Russian Glonass M satellites crashing to the ground at the Baikonur Cosmodrome in Kazakhstan.

Managed by commercial launch services provider International Launch Services (ILS) of Reston, Va., and majority shareholder Khrunichev Research and Production Space Center of Moscow, the Baikonur mission orbited the Astra 2E commercial telecom satellite for Luxembourg-based SES, the world's second-largest fleet operator by revenue. The mission marked the fifth for Proton this year, including the July 2 mishap managed by the Russian federation involving a Proton M/Block DM3 that failed after an engineer improperly installed three angular rate sensors on the rocket's first stage.

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