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Proceedings Paper

Optical offset pointing of radio interferometers: applications at the Combined Array for Research in Millimeter-wave Astronomy
Author(s): Stuartt A. Corder; Melvyn C. H. Wright; John M. Carpenter
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Paper Abstract

Optical telescopes and cameras are often used to determine the initial pointing model for radio antennas. After this initial determination, the optical systems are typically not used. The Combined Array for Research in Millimeter-wave Astronomy (CARMA) has implemented optical oset pointing as a standard calibration option for science observations. We report on the proof of concept testing, the method, and the typical improvements obtained over traditional radio pointing. We conclude with a brief discussion of future directions, which may oer further improved pointing at CARMA and at other facilities that require increased pointing accuracy.

Paper Details

Date Published: 4 August 2010
PDF: 12 pages
Proc. SPIE 7733, Ground-based and Airborne Telescopes III, 77333P (4 August 2010); doi: 10.1117/12.857431
Show Author Affiliations
Stuartt A. Corder, National Radio Astronomy Observatory (Chile)
Melvyn C. H. Wright, Univ. of California, Berkeley (United States)
John M. Carpenter, California Institute of Technology (United States)

Published in SPIE Proceedings Vol. 7733:
Ground-based and Airborne Telescopes III
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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