Control philosophy of the Gemini 8-m telescopes

Richard J. McGonegal

doi:10.1117/12.176249

1 June 1994 Control philosophy of the Gemini 8-m telescopes

Richard J. McGonegal

Proceedings Volume 2199, Advanced Technology Optical Telescopes V; (1994) https://doi.org/10.1117/12.176249
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

Abstract

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.

Citation Download Citation

Richard J. McGonegal "Control philosophy of the Gemini 8-m telescopes", Proc. SPIE 2199, Advanced Technology Optical Telescopes V, (1 June 1994); https://doi.org/10.1117/12.176249

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