Incorrectly installed angular rate sensors on the first stage of a Russian Proton M/Block DM-03 rocket most likely caused the vehicle to crash seconds after its July 2 launch, according to a government investigation published by Russian space agency Roscosmos July 18. The launch vehicle—with three Glonass-M navigation satellites on board—crashed 32 sec. after liftoff from Baikonur Cosmodrome in Kazakhstan due to loss of stability in its yaw axis. The investigation revealed that at least ...


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