Space Telescope pointing control

Computer Science – Performance

Scientific paper

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Attitude Control, Hubble Space Telescope, Pointing Control Systems, Spacecraft Control, Magnetic Control, Reaction Wheels, Structural Stability, Structural Vibration

Scientific paper

The Space Telescope, a long life, high performance spacecraft deployed by the Space Shuttle, will carry five scientific instruments on its first mission. Its pointing control system will permit target-to-target maneuvering and precision pointing on a target star to support scientific objectives. Spacecraft attitude control is achieved by onboard computer processing of attitude and rate sensor data to generate reaction wheel torque commands. A momentum management control system is provided to desaturate the reaction wheels. This paper discusses the pointing control system and the control hardware investigations and improvements leading to system design.

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