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Proceedings Paper

The Subaru top unit exchanger
Author(s): Tomio Kurakami; Masami Yutani; Tomio Kanzawa; Norio Ohshima; Fumihiro Uraguchi; Kazuhito Namikawa; Akihiko Miyashita; Shinichi Kubota
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Paper Abstract

The SUBARU Telescope has four focal positions to allow different types of instruments. At present, there are four different Top Units; three types of secondary mirrors and one primary focus unit. These units have the weight of about 3 tons, and they need to be installed or changed high above in the air, with the telescope in its rest position, namely, pointed to the zenith. In order to carry out this exchange work safely and securely, in already a difficult working condition of high altitude place like Mauna Kea, we developed an automatic exchanger with remote control, called Top Unit Exchanger (TUE).

Paper Details

Date Published: 4 February 2003
PDF: 11 pages
Proc. SPIE 4837, Large Ground-based Telescopes, (4 February 2003); doi: 10.1117/12.456792
Show Author Affiliations
Tomio Kurakami, Subaru Telescope/National Astronomical Observatory of Japan (United States)
Masami Yutani, National Astronomical Observatory of Japan (Japan)
Tomio Kanzawa, Subaru Telescope/National Astronomical Observatory of Japan (United States)
Norio Ohshima, National Astronomical Observatory of Japan (Japan)
Fumihiro Uraguchi, Subaru Telescope/National Astronomical Observatory of Japan (United States)
Kazuhito Namikawa, Subaru Telescope/National Astronomical Observatory of Japan (United States)
Akihiko Miyashita, National Astronomical Observatory of Japan (Japan)
Shinichi Kubota, Mitsubishi Electric Corp. (Japan)


Published in SPIE Proceedings Vol. 4837:
Large Ground-based Telescopes
Jacobus M. Oschmann; Larry M. Stepp, Editor(s)

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