1 June 1994 Control philosophy of the Gemini 8-m telescopes
Author Affiliations +
The decision to use active optics for the Gemini 8-m Telescopes requires a re- evaluation of the control philosophy typically used in current telescope control systems. Rather than having a unique correspondence between error source, error detection, and error correction the Gemini control system must make choices about which control system to use to correct a given error. The basic problem is that motion in the focal plane of the telescope can result from movement of the optics or the mount. This paper will explain the Gemini control philosophy, present the hardware and software architecture proposed to support this philosophy, and estimate the pointing and tracking performance of the Gemini telescope based on this philosophy and architecture.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard J. McGonegal, Richard J. McGonegal, } "Control philosophy of the Gemini 8-m telescopes", Proc. SPIE 2199, Advanced Technology Optical Telescopes V, (1 June 1994); doi: 10.1117/12.176249; https://doi.org/10.1117/12.176249


Architecture of the MAD real-time computer
Proceedings of SPIE (February 07 2003)
CFHT adaptive optics: first results at the telescope
Proceedings of SPIE (March 21 1997)
Performance predictions for the Gemini 8-m telescopes
Proceedings of SPIE (June 08 1995)
Control of image position errors with the VLT
Proceedings of SPIE (June 01 1994)
Gemini instrumentation
Proceedings of SPIE (June 01 1994)
UH/IfA fast tip-tilt secondary
Proceedings of SPIE (June 01 1994)
Control of the Gemini Cassegrain rotator
Proceedings of SPIE (September 18 1997)

Back to Top