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Pioneer 6, 7, 8, and 9

Pioneer 6, 7, 8, and 9

Program
Pioneer 6, 7, 8, and 9 were space probes in the Pioneer program, launched between 1965 and 1969. They were a series of solar-orbiting, spin-stabilized, solar cell- and battery-powered satellites designed to obtain measurements on a continuing... Wikipedia
Start date: December 16, 1965
Launch date: Dec. 16, 1965
Power: 79 W
Operator: NASA
Rocket: Delta-E
Launch mass: : 62.14 kg (Pioneer 6); 62.75 kg (Pioneer 7); 65.36 kg (Pioneer 8); 65.36 kg (Pioneer 9);