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Proceedings Paper

Modernization of the 1 meter Swope and 2.5 meter Du Pont telescopes at Las Campanas Observatory
Author(s): Frank Perez; Alan Bagish; Greg Bredthauer; Juan Espoz; Patricio Jones; Patricio Pinto
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Paper Abstract

The Observatories of the Carnegie Institution for Science have operated the 1 and 2.5-meter telescopes since the early 1970s with only minor changes to the original control systems. We discuss the replacement of the original 4004 microprocessor- based telescope control system with modern high-speed servo controllers and motors, absolute main axis encoders, modern closed-loop controls and PC-based main operating software. We also discuss the original relay-based interlock systems that have been replaced with Programmable Logic Controllers (PLC) and have been interfaced into the new telescope control system. The modernization of both telescopes also includes many hardware upgrades to allow for remote observing and scripted automatic observations. These upgrades also include the modernization of shutter drives, windscreens and dome controls to improve the reliability and safety required for remote observing from an existing facility.

Paper Details

Date Published: 17 September 2012
PDF: 7 pages
Proc. SPIE 8444, Ground-based and Airborne Telescopes IV, 84444H (17 September 2012); doi: 10.1117/12.927150
Show Author Affiliations
Frank Perez, Carnegie Observatories (United States)
Alan Bagish, Carnegie Observatories (United States)
Greg Bredthauer, Semiconductor Technology Associates (United States)
Juan Espoz, Carnegie Observatories (United States)
Patricio Jones, Carnegie Observatories (United States)
Patricio Pinto, Carnegie Observatories (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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