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Proceedings Paper

Autoguider servo design and testing of the W. M. Keck Telescope
Author(s): Mark J. Sirota; Kevin Ho; John Gathright; Hilton Lewis; William Lupton; Peter M. Thompson
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Paper Abstract

The servo design and model of the W. M. Keck telescopes autoguider is presented. Telescope servo models often do not include the guider loop and therefore do not take advantage of traditional control analysis and test techniques to improve performance. Guide camera dynamics, computational and transport lags, and compensation networks are discussed. A means of measuring the actual frequency response characteristics of the guide loop is presented and the results are compared to those predicted by the model. Guide performance as a function of integration time is illustrated. An improved compensation network is developed and its performance examined.

Paper Details

Date Published: 21 March 1997
PDF: 7 pages
Proc. SPIE 2871, Optical Telescopes of Today and Tomorrow, (21 March 1997); doi: 10.1117/12.268983
Show Author Affiliations
Mark J. Sirota, California Association for Research in Astronomy (United States)
Kevin Ho, California Association for Research in Astronomy (United States)
John Gathright, California Association for Research in Astronomy (United States)
Hilton Lewis, California Association for Research in Astronomy (United States)
William Lupton, California Association for Research in Astronomy (United States)
Peter M. Thompson, Systems Technology, Inc. (United States)


Published in SPIE Proceedings Vol. 2871:
Optical Telescopes of Today and Tomorrow
Arne L. Ardeberg, Editor(s)

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