Space telescope pointing control system

Astronomy and Astrophysics – Astronomy

Scientific paper

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Dynamic Control, Hubble Space Telescope, Numerical Control, Pointing Control Systems, Systems Engineering, Computer Programs, Digital Computers, Space Shuttles

Scientific paper

The Space Telescope is a free-flying spacecraft designed for Space Shuttle launch. The Space Telescope's pointing control system slews the optical axis from one target star region of the celestial sphere to the next, and maintains precision pointing for the target star for up to 24 hours. The spacecraft digital computer processes the precision attitude and rate sensor data to generate torque commands for the reaction wheels. The pointing control system has four major elements: the command generator, the control system, the attitude reference processing, and momentum management. The emphasis is on relating design requirements to the hardware and software implementation.

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