Satellite, OSO-1, Prototype

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    Satellite, OSO-1, Prototype

    Octagonal disk shaped body with a hemispherical sail section orthogonal to it covered with solar cells. Three retractable legs protrude from the octagonal disk and end in silver spheres.

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Display Status:

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

This is an engineering prototype of Orbiting Solar Observatory 1 (OSO-1), the earliest of the spin stabilized scientific satellites. This object touted the ability of the satellite's systems to search out and lock onto a "solar" image. It demonstrated the sun-pointing capabilities of the satellite. It contains actual instruments in the octagonal spin section, and mock-ups in the pointed section, save for the photoelectric eye block. Ball Aerospace Systems Division restored this engineering prototype in 1982.

Transferred from the NASA to the Museum in 1981.