Spacecraft and Instrument

    Photometer | Spacecraft | Mission Design

    Engineering drawing of the Kepler SpacecraftImage above: Kepler spacecraft cross section. Credit: NASA The Kepler spacecraft provides the power, pointing and telemetry for the photometer. Pointing at a single group of stars for the entire mission greatly increases the photometric stability and simplifies the spacecraft design. Other than the small reaction wheels used to maintain the pointing and an ejectable cover, there are no other moving or deployable parts The only liquid is a small amount for the thrusters which is kept from slosh by a pressurized membrane. This design enhances the pointing stability and the overall reliability of the spacecraft.

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