Software control and characterization aspects for image derotator of the AO188 system at Subaru

Taras Golota; Shin Oya; Sebastian Egner; Makoto Watanabe; Michael Eldred; Yosuke Minowa; Hideki Takami; David Cook; Yutaka Hayano; Yoshihiko Saito; Masayuki Hattori; Vincent Garrel; Meguru Ito

doi:10.1117/12.857964

20 July 2010 Software control and characterization aspects for image derotator of the AO188 system at Subaru

Taras Golota, Shin Oya, Sebastian Egner, Makoto Watanabe, Michael Eldred, Yosuke Minowa, Hideki Takami, David Cook, Yutaka Hayano, Yoshihiko Saito, Masayuki Hattori, Vincent Garrel, Meguru Ito

Author Affiliations +

Proceedings Volume 7735, Ground-based and Airborne Instrumentation for Astronomy III; 77353W (2010) https://doi.org/10.1117/12.857964
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

The image derotator is an integral part of the AO188 System at Subaru Telescope. In this article software control, characterization and integration issues of the image derotator for AO188 System presented. Physical limitations of the current hardware reviewed. Image derotator synchronization, tracking accuracy, and problem solving strategies to achieve requirements presented. It's use in different observation modes for various instruments and interaction with the telescope control system provides status and control functionality. We describe available observation modes along with integration issues. Technical solutions with results of the image derotator performance presented. Further improvements and control software for on-sky observations discussed based on the results obtained during engineering observations. An overview of the requirements, the final control method, and the structure of its control software is shown. Control limitations and accepted solutions that might be useful for development of other instrument's image derotators presented.

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Taras Golota, Shin Oya, Sebastian Egner, Makoto Watanabe, Michael Eldred, Yosuke Minowa, Hideki Takami, David Cook, Yutaka Hayano, Yoshihiko Saito, Masayuki Hattori, Vincent Garrel, and Meguru Ito "Software control and characterization aspects for image derotator of the AO188 system at Subaru", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77353W (20 July 2010); https://doi.org/10.1117/12.857964

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KEYWORDS

Telescopes

Control systems

Electroluminescence

Distance measurement

Human-machine interfaces

Interfaces

Motion measurement

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