Solar Object Tracking For The Hubble Space Telescope

J. J. Rodden; H. J. Dougherty

doi:10.1117/12.964422

1 February 1987 Solar Object Tracking For The Hubble Space Telescope

J. J. Rodden, H. J. Dougherty

Proceedings Volume 0641, Acquisition, Tracking, and Pointing; (1987) https://doi.org/10.1117/12.964422
Event: 1986 Technical Symposium Southeast, 1986, Orlando, United States

Abstract

The Hubble Space Telescope (HST) is designed to carry five major scientific instruments to collect imagery, spectrographic, and photometric astronomical data. The Pointing Control System is to achieve pointing accuracies and line of sight jitter levels an order of magni-tude less than can be achieved with ground mounted telescopes. In addition, the HST must be able to acquire and track solar system targets with apparent motion up to 0."21/s. Such targets include planetary satellites, planetary surface features and comets. It is to perform this tracking with an accuracy under 0."03 at the maximum rate. Tracking of solar objects by the Space Telescope accounts for the effects of velocity aberration and parallax, as well as solar targeting a celestial object in a science instrument aperture. The design of the Pointing Control System solar object tracking features is discussed, with emphasis on the special timing and granulation problems inherent with a sampled data, multi-rate digital control system.

Citation Download Citation

J. J. Rodden and H. J. Dougherty "Solar Object Tracking For The Hubble Space Telescope", Proc. SPIE 0641, Acquisition, Tracking, and Pointing, (1 February 1987); https://doi.org/10.1117/12.964422

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