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Proceedings Paper

The GTC: a convenient test bench for ELT demonstrations
Author(s): Jose Miguel Rodriguez Espinosa; Peter L. Hammersley; Carlos Martinez-Roger
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Paper Abstract

The Gran Telescopio Canarias (GTC) is, being assembled at the Observatorio del Roque de los Muchachos (ORM) in the island of La Palma. First light is expected for early 2005 with the first science observations late in 2005. The GTC, being a segmented primary mirror telescope, could be employed for testing several technological aspects relevant to the future generation of Extremely Large Telescopes (ELT). In the short term, the mass production of aespheric mirror segments can be examined in detail and improvements made along the way, or planned for the future. Indeed the GTC segments are now entering into a chain production scheme. Later on, different strategies for the control aspects of the primary mirror can be explored to optimize the optical performance of segmented telescopes. Moreover, the entire GTC active optics can offer a learning tool for testing various strategies and their application to ELTs.

Paper Details

Date Published: 7 July 2004
PDF: 4 pages
Proc. SPIE 5382, Second Backaskog Workshop on Extremely Large Telescopes, (7 July 2004); doi: 10.1117/12.566236
Show Author Affiliations
Jose Miguel Rodriguez Espinosa, Instituto de Astrofisica de Canarias (Spain)
Peter L. Hammersley, Instituto de Astrofisica de Canarias (Spain)
Carlos Martinez-Roger, Instituto de Astrofisica de Canarias (Spain)

Published in SPIE Proceedings Vol. 5382:
Second Backaskog Workshop on Extremely Large Telescopes
Arne L. Ardeberg; Torben Andersen, Editor(s)

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