Mathematics – Probability
Scientific paper
Feb 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4837..255m&link_type=abstract
Large Ground-based Telescopes. Edited by Oschmann, Jacobus M.; Stepp, Larry M. Proceedings of the SPIE, Volume 4837, pp. 255
Mathematics
Probability
3
Scientific paper
Based on the successful numerical weather forecasting performed by collaboration between MKWC and Subaru Telescope, we develop a temperature control system of the primary mirror of the Subaru Telescope. Temperature forecast is accurate 80% in 2 degrees. After to start the operation, the temperature of the primary mirror controlled below 1 degree centigrade compare by the ambient night air temperature in over 70% probability. The effect of the temperature control for the improvement of the seeing of Subaru telescope seems to be moderately effective.The median of the seeing size of Subaru Telescope on May 2000 to July 2002 is 0.69 arcsec FWHM. We need further investigation whether the improvement is the result of our successful temperature control system of the primary mirror, or the effect of the annual variation of seeing itself. Thus, we need a long period data for verification the effect of the temperature control.
Kosugi George
Miyashita Akihiko
Ogasawara Ryusuke
Takata Tadafumi
Takato Naruhisa
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