August 19, 2011 – On 18 August, at 3:25 a.m., a Proton Breeze M vehicle carrying the Express-AM4 satellite launched from the Baikonur Cosmodrome in Kazakhstan. The Proton M launch vehicle performed nominally, and the ascent unit including the Breeze M upper stage and the spacecraft separated at the appropriate time. Contact with the Breeze M and spacecraft was lost after the fourth burn of the Breeze M upper stage. Roscosmos specialists were able to locate the Breeze M Upper Stage. Efforts are now underway to establish contact with the Express-AM4 spacecraft.
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