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artificial satellite - Did Sputnik 1 have attitude control? - Space Exploration Stack Exchange
https://space.stackexchange.com/questions/18627/did-sputnik-1-have-attitude-control
そもそも姿勢制御がない
Space Exploration Stack ExchangeDid Sputnik 1 have attitude control?The (currently only) answer to Why did Sputnik 1 have four antennas? discusses how Sputnik 1 had four antennas in order to ensure that the Earth would never be in the null of any of its antennas.