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MOSCOW, Aug. 30 (Xinhua) -- Russia's space agency said Tuesday that a Proton-M rocket launch failed earlier this month because of a malfunction1 in the upper stage.
The conclusion was reached by an independent investigation2 commission following a series of checks, Roscosmos said in a report that was posted on its website.
"The commission reported that the time span reserved for the gyrostabilized platform's turn was miscalculated and narrowed, which caused the Briz-M upper stage's disorientation and the satellite's journey to a wrong orbit," the agency said.
Other systems in the upper stage performed well, the agency said, adding it has lifted a ban on launches of the Proton-M carrier rockets equipped with the Briz-M upper stage.
Local media reported the Briz-M, manufactured by the Khrunichev State Research and Production Space Center, has had five failures over its 12-year history of operation.
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1 malfunction | |
vi.发生功能故障,发生故障,显示机能失常 | |
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2 investigation | |
n.调查,调查研究 | |
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3 pending | |
prep.直到,等待…期间;adj.待定的;迫近的 | |
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