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Proceedings Paper

From fringes to the USNO Navy Prototype Optical Interferometer Astrometric Catalog
Author(s): J. A. Benson; D. J. Hutter; R. T. Zavala; H. C. Harris; P. D. Shankland; K. J. Johnston
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Paper Abstract

We report progress on the United States Naval Observatory, Navy Prototype Optical Interferometer, Astrometric Catalog (UNAC). This catalog uses observations from eight astrometric observation runs (Jan. 2005 - Nov. 2009) at the Navy Prototype Optical Interferometer (NPOI). The goal of the first release of the UNAC is to provide an astrometric catalog of at least 100 bright (V < 6) stars with precise positions accurate to < 16 milliarcseconds. In this paper we report on some of the data processing methods used to obtain absolute astrometric positions from optical interferometer data. We also discuss plans for assessing the accuracy of our interferometrically derived absolute astrometric positions.

Paper Details

Date Published: 21 July 2010
PDF: 9 pages
Proc. SPIE 7734, Optical and Infrared Interferometry II, 77343K (21 July 2010); doi: 10.1117/12.858244
Show Author Affiliations
J. A. Benson, U.S. Naval Observatory (United States)
D. J. Hutter, U.S. Naval Observatory (United States)
R. T. Zavala, U.S. Naval Observatory (United States)
H. C. Harris, U.S. Naval Observatory (United States)
P. D. Shankland, U.S. Naval Observatory (United States)
K. J. Johnston, U.S. Naval Observatory (United States)


Published in SPIE Proceedings Vol. 7734:
Optical and Infrared Interferometry II
William C. Danchi; Françoise Delplancke; Jayadev K. Rajagopal, Editor(s)

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