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Proceedings Paper

Outrigger telescopes for narrow-angle astrometry
Author(s): James Bell; James M. Walker; Peter L. Wizinowich; Kevin Tsubota; Andy C. Rudeen; Dennis McBride; Kyle K. Kinoshita; Michael Hrynevych; Patricia Goude; M. Mark Colavita; James H. Kelley; Gerard Theodore van Belle; Robert Brunswick; John K. Little; Craig H. Smith
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Paper Abstract

The NASA Outrigger Telescope Project is a ground-based component of NASA's Navigator Program. The proposed project would utilize four to six 1.8-meter telescopes with co-rotating domes configured as an interferometer. One of the project’s scientific goals is the detection of exoplanets, which would be accomplished with long baseline narrow-angle astrometry. This astrometry mode would be able to detect Uranus mass planets up to 60 light years away. The requirements of narrow-angle astrometry, both technically and operationally, levy requirements on the telescopes and enclosures, including, for example, wavefront quality, pivot stability, and slew speed. This paper will describe these requirements and how they were achieved in the design. It will also discuss the testing and verification of these requirements. Actual telescope performance as tested at EOS Technologies is presented elsewhere in these proceedings.

Paper Details

Date Published: 28 September 2004
PDF: 12 pages
Proc. SPIE 5489, Ground-based Telescopes, (28 September 2004); doi: 10.1117/12.552403
Show Author Affiliations
James Bell, W.M. Keck Observatory (United States)
James M. Walker, W.M. Keck Observatory (United States)
Ball Aerospace (United States)
Peter L. Wizinowich, W.M. Keck Observatory (United States)
Kevin Tsubota, W.M. Keck Observatory (United States)
Andy C. Rudeen, W.M. Keck Observatory (United States)
Dennis McBride, W.M. Keck Observatory (United States)
Kyle K. Kinoshita, W.M. Keck Observatory (United States)
Michael Hrynevych, W.M. Keck Observatory (United States)
Patricia Goude, W.M. Keck Observatory (United States)
M. Mark Colavita, Jet Propulsion Lab. and California Institute of Technology (United States)
James H. Kelley, Jet Propulsion Lab. (United States)
Gerard Theodore van Belle, Jet Propulsion Lab. (United States)
Robert Brunswick, Electro Optic Systems Pty. Ltd. (Australia)
John K. Little, EOS Technologies, Inc. (United States)
Craig H. Smith, EOS Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 5489:
Ground-based Telescopes
Jacobus M. Oschmann Jr., Editor(s)

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