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Proceedings Paper

Gran Telescopio Canarias Commissioning Instrument optomechanics
Author(s): Carlos Espejo; Salvador Cuevas; Beatriz Sanchez; Ruben Flores; Gerardo Lara; Alejandro Farah; Javier Godoy; Vicente Bringas; Armando Chavoya; Ariel Dorantes; Juan Manuel Montoya; Juan Carlos Rangel; Nicholas Devaney; Javier Castro; Luis Cavaller
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Paper Abstract

Under a contract with the GRANTECAN, the Commissioning Instrument is a project developed by a team of Mexican scientists and engineers from the Instrumentation Department of the Astronomy Institute at the UNAM and the CIDESI Engineering Center. This paper will discuss in some detail the final Commissioning Instrument (CI) mechanical design and fabrication. We will also explain the error budget and the barrels design as well as their thermal compensation. The optical design and the control system are discussed in other papers. The CI will just act as a diagnostic tool for image quality verification during the GTC Commissioning Phase. This phase is a quality control process for achieving, verifying, and documenting the performance of each GTC sub-systems. This is a very important step for the telescope life. It will begin on starting day and will last for a year. The CI project started in December 2000. The critical design phase was reviewed in July 2001. The CI manufacturing is currently in progress and most parts are finished. We are now approaching the factory acceptance stage.

Paper Details

Date Published: 4 February 2003
PDF: 9 pages
Proc. SPIE 4837, Large Ground-based Telescopes, (4 February 2003); doi: 10.1117/12.458203
Show Author Affiliations
Carlos Espejo, Instituto de Astronomia/Univ. Nacional Autonoma de Mexico (Mexico)
Salvador Cuevas, Instituto de Astronomia/Univ. Nacional Autonoma de Mexico (Mexico)
Beatriz Sanchez, Instituto de Astronomia/Univ. Nacional Autonoma de Mexico (Mexico)
Ruben Flores, Instituto de Astronomia/Univ. Nacional Autonoma de Mexico (Mexico)
Gerardo Lara, Instituto de Astronomia/Univ. Nacional Autonoma de Mexico (Mexico)
Alejandro Farah, Instituto de Astronomia/Univ. Nacional Autonoma de Mexico (Mexico)
Javier Godoy, Instituto de Astronomia/Univ. Nacional Autonoma de Mexico (Mexico)
Vicente Bringas, Ctr. de Ingenieria y Desarrollo Industrial (Mexico)
Armando Chavoya, Ctr. de Ingenieria y Desarrollo Industrial (Mexico)
Ariel Dorantes, Ctr. de Ingenieria y Desarrollo Industrial (Mexico)
Juan Manuel Montoya, Ctr. de Ingenieria y Desarrollo Industrial (Mexico)
Juan Carlos Rangel, Ctr. de Ingenieria y Desarrollo Industrial (Mexico)
Nicholas Devaney, Instituto de Astrofisica de Canarias (Spain)
Javier Castro, Instituto de Astrofisica de Canarias (Spain)
Luis Cavaller, Instituto de Astrofisica de Canarias (Spain)


Published in SPIE Proceedings Vol. 4837:
Large Ground-based Telescopes
Jacobus M. Oschmann; Larry M. Stepp, Editor(s)

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