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Proceedings Paper

Development status and performance estimation of MAXI
Author(s): Shiro Ueno; Hiroshi Tomida; Naoki Isobe; Haruyoshi Katayama; Kazuyoshi Kawasaki; Takao Yokota; Naoyuki Kuramata; Masaru Matsuoka; Tatehiro Mihara; Ikuya Sakurai; Motoki Nakajima; Mitsuhiro Kohama; Hiroshi Tsunemi; Emi Miyata; Nobuyuki Kawai; Jun Kataoka; Yuuri Serino; Yoshihisa Yamamoto; Atsumasa Yoshida; Hitoshi Negoro
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Paper Abstract

Monitor of All-sky X-ray Image (MAXI) is an X-ray all-sky monitor, which will be delivered to the International Space Station (ISS) in 2008, to scan almost the whole sky once every 96 minutes for a mission life of two years. The detection sensitivity will be 7~mCrab (5σ level) in one scan, and 1~mCrab for one-week accumulation. At previous SPIE meetings, we presented the development status of the MAXI payload, in particular its X-ray detectors. In this paper, we present the whole picture of the MAXI system, including the downlink path and the MAXI ground system. We also examine the MAXI system components other than X-ray detectors from the point of view of the overall performance of the mission. The engineering model test of the MAXI X-ray slit collimator shows that we can achieve the position determination accuracy of <0.1 degrees, required for the ease of follow-up observations. Assessing the downlink paths, we currently estimates that the MAXI ground system receive more than 50% of the observational data in "real time" (with time delay of a few to ten seconds), and the rest of data with delay of 20 minutes to a few hours from detection, depending on the timing of downlink. The data will be processed in easily-utilised formats, and made open to public users through the Internet.

Paper Details

Date Published: 11 October 2004
PDF: 12 pages
Proc. SPIE 5488, UV and Gamma-Ray Space Telescope Systems, (11 October 2004); doi: 10.1117/12.550784
Show Author Affiliations
Shiro Ueno, Japan Aerospace Exploration Agency (Japan)
Hiroshi Tomida, Japan Aerospace Exploration Agency (Japan)
Naoki Isobe, Japan Aerospace Exploration Agency (Japan)
Haruyoshi Katayama, Japan Aerospace Exploration Agency (Japan)
Kazuyoshi Kawasaki, Japan Aerospace Exploration Agency (Japan)
Takao Yokota, Japan Aerospace Exploration Agency (Japan)
Naoyuki Kuramata, Japan Aerospace Exploration Agency (Japan)
Masaru Matsuoka, Japan Aerospace Exploration Agency (Japan)
Tatehiro Mihara, RIKEN--The Institute of Physical and Chemical Research (Japan)
Ikuya Sakurai, RIKEN--The Institute of Physical and Chemical Research (Japan)
Motoki Nakajima, RIKEN--The Institute of Physical and Chemical Research (Japan)
Mitsuhiro Kohama, RIKEN--The Institute of Physical and Chemical Research (Japan)
Hiroshi Tsunemi, Osaka Univ. (Japan)
Emi Miyata, Osaka Univ. (Japan)
Nobuyuki Kawai, Tokyo Institute of Technology (Japan)
Jun Kataoka, Tokyo Institute of Technology (Japan)
Yuuri Serino, Tokyo Institute of Technology (Japan)
Yoshihisa Yamamoto, Tokyo Institute of Technology (Japan)
Atsumasa Yoshida, Aoyama Gakuin Univ. (Japan)
Hitoshi Negoro, Nihon Univ. (Japan)

Published in SPIE Proceedings Vol. 5488:
UV and Gamma-Ray Space Telescope Systems
Guenther Hasinger; Martin J. L. Turner, Editor(s)

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