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Proceedings Paper

JCMT observatory control system
Author(s): Nicholas P. Rees; Frossie Economou; Tim Jenness; Russell D. Kackley; Craig A. Walther; William R. F. Dent; Martin Folger; Xiaofeng Gao; Dennis Kelly; John F. Lightfoot; Ian Pain; Gary J. Hovey; Russell O. Redman
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Paper Abstract

The JCMT, the world's largest sub-mm telescope, has had essentially the same VAX/VMS based control system since it was commissioned. For the next generation of instrumentation we are implementing a new Unix/VxWorks based system, based on the successful ORAC system that was recently released on UKIRT. The system is now entering the integration and testing phase. This paper gives a broad overview of the system architecture and includes some discussion on the choices made. (Other papers in this conference cover some areas in more detail). The basic philosophy is to control the sub-systems with a small and simple set of commands, but passing detailed XML configuration descriptions along with the commands to give the flexibility required. The XML files can be passed between various layers in the system without interpretation, and so simplify the design enormously. This has all been made possible by the adoption of an Observation Preparation Tool, which essentially serves as an intelligent XML editor.

Paper Details

Date Published: 13 December 2002
PDF: 11 pages
Proc. SPIE 4848, Advanced Telescope and Instrumentation Control Software II, (13 December 2002); doi: 10.1117/12.461306
Show Author Affiliations
Nicholas P. Rees, Joint Astronomy Ctr. (United States)
Frossie Economou, Joint Astronomy Ctr. (United States)
Tim Jenness, Joint Astronomy Ctr. (United States)
Russell D. Kackley, Joint Astronomy Ctr. (United States)
Craig A. Walther, Joint Astronomy Ctr. (United States)
William R. F. Dent, Astronomical Technology Ctr. (United Kingdom)
Martin Folger, Astronomical Technology Ctr. (United Kingdom)
Xiaofeng Gao, Astronomical Technology Ctr. (United Kingdom)
Dennis Kelly, Astronomical Technology Ctr. (United Kingdom)
John F. Lightfoot, Astronomical Technology Ctr. (United Kingdom)
Ian Pain, Astronomical Technology Ctr. (United Kingdom)
Gary J. Hovey, Dominion Radio Astrophysical Observatory (Canada)
Russell O. Redman, Herzberg Institute of Astrophysics (Canada)

Published in SPIE Proceedings Vol. 4848:
Advanced Telescope and Instrumentation Control Software II
Hilton Lewis, Editor(s)

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