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Proceedings Paper

An upgrade to the telescope control system (TCS) for the Canada-France-Hawaii Telescope
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Paper Abstract

The Canada-France-Hawaii Telescope (CFHT) has been in operation since 1979. The Telescope Control System (TCS) has undergone software changes since the beginning of science operation but the original hardware has largely been untouched except for an upgrade to the time system and host computer. Telescope performance has not been an issue although some improvements are desirable. However, parts obsolescence will become a problem as the telescope enters it third decade of operation. Although there are sufficient spare parts currently, many are no longer readily available. Some critical components, such as encoders and VME CPU boards are no longer available. The TCS upgrade project addresses the obsolete and obsolescent issues to ensure operational capability through 2025. It seeks to modernize and simplify the electronics and to take advantages of the advancement made in stand-alone servo controllers.

Paper Details

Date Published: 17 September 2012
PDF: 8 pages
Proc. SPIE 8444, Ground-based and Airborne Telescopes IV, 84445K (17 September 2012); doi: 10.1117/12.926432
Show Author Affiliations
K. K. Y. Ho, Canada-France-Hawaii Telescope (United States)
W. Cruise, Canada-France-Hawaii Telescope (United States)
J. Thomas, Canada-France-Hawaii Telescope (United States)


Published in SPIE Proceedings Vol. 8444:
Ground-based and Airborne Telescopes IV
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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