10 July 2008 Giant Magellan Telescope site evaluation and characterization at Las Campanas Observatory
Author Affiliations +
Abstract
Las Campanas Observatory has been designated as the location for the Giant Magellan Telescope (GMT). We report results obtained since the commencement, in 2005, of a systematic site testing campaign at LCO. Meteorological (cloud cover, temperature, pressure, wind, and humidity) and DIMM seeing data have been obtained at three potential sites, and are compared with identical data taken at the site of the twin Magellan 6.5m telescopes. In addition, measurements of the turbulence profile of the free-atmosphere above LCO have been collected with a MASS/DIMM. We examine the contribution to the seeing arising from turbulence in the ground layer (defined here as below an altitude of 500 m) through the difference between the turbulence integrals in the full atmosphere (as measured by DIMM) and in the free atmosphere (as measured by MASS). Additionally, we consider photometric quality, light pollution, and precipitable water vapor at LCO.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joanna E. Thomas-Osip, Joanna E. Thomas-Osip, Gabriel Prieto, Gabriel Prieto, Matt Johns, Matt Johns, Mark M. Phillips, Mark M. Phillips, } "Giant Magellan Telescope site evaluation and characterization at Las Campanas Observatory", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 70121U (10 July 2008); doi: 10.1117/12.789863; https://doi.org/10.1117/12.789863
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

Generalized SCIDAR measurements at La Silla Observatory
Proceedings of SPIE (June 22 2006)
Giant Magellan Telescope site testing: summary
Proceedings of SPIE (August 04 2010)
Site selection for the European ELT
Proceedings of SPIE (July 06 2004)
E-ELT site characterization status
Proceedings of SPIE (July 09 2008)

Back to Top