23 June 2006 URAT: astrometric requirements and design history
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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.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Norbert Zacharias, Norbert Zacharias, Uwe Laux, Uwe Laux, Andrew Rakich, Andrew Rakich, Harland Epps, Harland Epps, "URAT: astrometric requirements and design history", Proc. SPIE 6267, Ground-based and Airborne Telescopes, 62670P (23 June 2006); doi: 10.1117/12.670914; https://doi.org/10.1117/12.670914


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