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Proceedings Paper

URAT: astrometric requirements and design history
Author(s): Norbert Zacharias; Uwe Laux; Andrew Rakich; Harland Epps
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Paper Abstract

The U.S. Naval Observatory Robotic Astrometric Telescope (URAT) project aims at a highly accurate (5 mas), ground-based, all-sky survey. Requirements are presented for the optics and telescope for this 0.85 m aperture, 4.5 degree diameter field-of-view, specialized instrument, which are close to the capability of the industry. The history of the design process is presented as well as astrometric performance evaluations of the toleranced, optical design, with expected wavefront errors included.

Paper Details

Date Published: 23 June 2006
PDF: 12 pages
Proc. SPIE 6267, Ground-based and Airborne Telescopes, 62670P (23 June 2006); doi: 10.1117/12.670914
Show Author Affiliations
Norbert Zacharias, U.S. Naval Observatory (United States)
Uwe Laux, Thüringer Landessternwarte (Germany)
Andrew Rakich, EOS Space Systems (Australia)
Harland Epps, Lick Observatory, Univ. of California, Santa Cruz (United States)

Published in SPIE Proceedings Vol. 6267:
Ground-based and Airborne Telescopes
Larry M. Stepp, Editor(s)

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