The Mission and Spacecraft Library

Pioneer 5

Part of the Pioneer program

Pioneer 5 was designed to provide the first map of the interplanetary magnetic field. The vehicle functioned for a record 106 days, and communicated with Earth from a record distance of 36.2 million km.

Spin stabilized. Four deployed/fixed solar paddles providing 16 watts.

Country of Origin United States
Customer/User USAF, NASA
Manufacturer(s) TRW
Size 0.66 m diameter sphere, 1.4 m span across solar panels
Orbit Solar orbit, 0.806 x 0.995 AU
Design Life 1 month

Launch Facts
 Name  Int'l Desig.  Date  Site  Vehicle  Orbit  Mass(kg)
 Pioneer 5  1960-[Alpha]1  3/11/60  ESMC  Thor Able  Solar  43
    Solar research

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