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19 July 2010 A prototype of Hyper Suprime-Cam data analysis system
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We develop a prototype of data analysis system for the wide-field camera Hyper Suprime-Cam (HSC) at Subaru Telescope. The current prototype is optimized for data of the current Subaru prime-focus camera Suprime-Cam, which is a precursor instrument of HSC, to study the on-site data evaluation for wide-field imaging. The system conducts realtime data evaluation for every data frame obtaining statistical information including seeing, sky-background level, astrometric solution, and photometric zeropoint when available. Variations in time of the derived values are shown on a web-based status monitor. The on-demand analysis such as mosaicing analysis is performed using the data evaluation results. This system consists of analysis pipelines responsible for data processing, and the analysis organizing software for controlling analysis tasks and data flow and the database. The XML-based database maintains all the analysis results and analysis histories. Improvement of the analysis speed by parallel data processing is achieved with the aid of the organizing software. This system has started operation in general observations since March 2010, and will be extended to process the 104 CCD's of HSC. The system may be used for observing support and also possible to apply to another imaging-mode instruments in the future.
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Hisanori Furusawa, Naoki Yasuda, Yuki Okura, Fumiaki Nakata, Sogo Mineo, Tadafumi Takata, Manobu Tanaka, Ryosuke Itoh, Nobuhiko Katayama, Yutaka Komiyama, Satoshi Miyazaki, Yousuke Utsumi, Hiroaki Aihara, Tomohisa Uchida, and Robert H. Lupton "A prototype of Hyper Suprime-Cam data analysis system", Proc. SPIE 7740, Software and Cyberinfrastructure for Astronomy, 77402I (19 July 2010);

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