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Instrumental Parameters of the U.S. Naval Observatory's Automatic Transit Circle (ATC)

Published online by Cambridge University Press:  14 August 2015

B. L. Klock  and
F. S. Gauss
B. L. Klock
Affiliation:
U.S. Naval Observatory, Washington D.C., U.S.A.
F. S. Gauss
Affiliation:
U.S. Naval Observatory, Washington D.C., U.S.A.

Abstract

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The instrumental constants of the Naval Observatory's Automatic Transit Circle are discussed in conjunction with the transit circle's on-line data acquisition and control system. The reflecting collimators have been designed with CerVit primaries and minified point sources. The mark lens configuration is comprised of a long focal length lens and wedge manufactured from a single piece of fused silica. The on-line data acquisition and control system will permit real time monitoring of these instrumental parameters.

Type
Session G: Astrometric Techniques
Information
Symposium - International Astronomical Union , Volume 61: New Problems in Astrometry , 1974 , pp. 257 - 259
Copyright
Copyright © Reidel 1974 

References

Gauss, F. S.: 1969, Bull. Am. Astron. Soc. 1, 179.Google Scholar
Klock, B. L.: 1970, Trans. IAU XIVA, Report Commission 8.Google Scholar