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Luna E-8-5 No.402
Luna E-8-5 No.402, also known as Luna Ye-8-5 No.402, and sometimes identified by NASA as Luna 1969C, was a Soviet spacecraft under Luna programme which was lost in a launch failure in 1969. It was a Luna E-8-5 spacecraft, the first of at least eleven to be launched. It was intended to perform a soft landing on the Moon, collect a sample of lunar soil, and return it to the Earth. It was, along with Luna 15, one of two unsuccessful missions which had been launched by the Soviet Union in a last-ditch attempt to upstage the Apollo 11 landing under Moon race.〔
Luna E-8-5 No.402 was launched at 04:00:07 UTC on 14 June 1969 atop a Proton-K 8K78K carrier rocket with a Blok-D upper stage, flying from Site 81/24 at the Baikonur Cosmodrome. The upper stage failed to ignite, and consequently the spacecraft failed to achieve orbit. Prior to the release of information about its mission, NASA correctly identified that it had been an attempted sample return mission. However, they believed that a previous attempt had been made, using a spacecraft launched on 30 April, which had also been lost in a launch failure. They designated that attempt ''Luna 1969B''.〔 No Luna spacecraft or Proton rocket was launched on that date.〔
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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