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Proceedings Paper

Ultimate test results on the active optics system of the Galileo Telescope
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Paper Abstract

The Galileo Telescope is a Ritchey-Chretienne telescope with an aperture of 3.58 meters and is located in La Palma Island. Since the first light in June 1998, several nights have been used to calibrate and to test the active optics systems, an operation involving also the control and reduction software and the optics of the de-rotator system. At the moment the active optics system routinely works at the beginning of the nights to support both technical and scientific observations. The ultimate tests on the control system are here reported and its performances are analyzed in order to quantify the final optical quality. Also a brief report on the effects of the serrourier temperature is reported. A comparison between Shack-Hartmann analysis performed on the rotator adapter bench and wavefront analysis on the instrument focal plane (at Nasmith station) is also reported. Some images taken in the visible and near infrared ranges during the same night are shown.

Paper Details

Date Published: 20 July 2000
PDF: 6 pages
Proc. SPIE 4003, Optical Design, Materials, Fabrication, and Maintenance, (20 July 2000); doi: 10.1117/12.391502
Show Author Affiliations
Claudio Pernechele, Osservatorio Astronomico di Padova (Italy)
Fabio Bortoletto, Osservatorio Astronomico di Padova (Italy) and Ctr. Galileo Galilei (Italy)
Daniele Gardiol, Ctr. Galileo Galilei (Spain) and Osservatorio Astronomico di Torino (Italy)
Adriano Ghedina, Ctr. Galileo Galilei (Spain)
Enrico Marchetti, Ctr. Galileo Galilei (Germany)

Published in SPIE Proceedings Vol. 4003:
Optical Design, Materials, Fabrication, and Maintenance
Philippe Dierickx, Editor(s)

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