Translator Disclaimer
10 July 2008 Seeing environment at a 5640m altitude of Co. Chajnantor in northern Chile
Author Affiliations +
We have carried out a campaign to monitor seeing at a 5640m altitude on the summit of Co. Chajnantor at Atacama, for the 6.5m telescope TAO project planned by the University of Tokyo. The seeing conditions were measured at 0.5μm using a DIMM (Differential Image Motion Monitor) during 8 nights in November 2006 and April 2007. In April, the measurement was done on a 2m-tower to suppress effect of ground-layer turbulence. The best night showed median seeing of 0.38, while the total median seeing is 0.69. This is comparable or even better than most of the major observatories. Together with the high transparency in infrared wavelength owing to the extremely high altitude of 5640m and its accessibility, the summit of Co. Chajnantor is one of the best site for infrared astronomy on the Earth.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.


Site conditions for astronomy at the South Pole
Proceedings of SPIE (August 20 1998)
Stratospheric Observatory for Infrared Astronomy (SOFIA)
Proceedings of SPIE (August 21 2009)
CIRSI: the Cambridge Infrared Survey Instrument
Proceedings of SPIE (March 20 1997)
HAWC: a far-infrared camera for SOFIA
Proceedings of SPIE (August 20 1998)
High speed image motion study at the WIYN 3.5 m...
Proceedings of SPIE (September 10 1998)

Back to Top