Isotropic and anisotropic pointing models

Pál, András and Vida, Krisztián and Mészáros, László and Mező, György (2016) Isotropic and anisotropic pointing models. EXPERIMENTAL ASTRONOMY, 41 (1-2). pp. 1-15. ISSN 0922-6435

Preview

Text 1507.05469.pdf Available under License Creative Commons Attribution. Download (415kB) | Preview

Abstract

This paper describes an alternative approach for generating pointing models for telescopes equipped with serial kinematics, esp. equatorial or alt-az mounts. Our model construction does not exploit any assumption for the underlying physical constraints of the mount, however, one can assign various effects to the respective components of the equations. In order to recover the pointing model parameters, classical linear least squares fitting procedures can be applied. This parameterization also lacks any kind of parametric singularity. We demonstrate the efficiency of this type of model on real measurements with meter-class telescopes where the results provide a root mean square accuracy of 1.5-2 arcseconds.

Actions (login required)

Edit Item