Statistics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21361104r&link_type=abstract
American Astronomical Society, AAS Meeting #213, #611.04
Statistics
Scientific paper
The Thirty Meter Telescope project (TMT) is examining five sites in Chile, Hawaii and Mexico as possible locations for the placement of the telescope. As part of the site testing program, images are taken of the night sky using the All-Sky Camera (ASCA). This camera is designed to image clouds in the sky for determination of the statistics of cloud measurements and usable observing nights at each site.
There is additional information about the night sky that would be useful in the decision on where to place TMT. For any telescope, the amount of ambient light scattered into the optical path can degrade the observational capability of the instrument. It would be a waste to build a large light collecting aperture and then place it in a location where the sky is too bright to take advantage of the full capability of the telescope.
For this reason, a procedure was developed to extract light pollution information from the ASCA data set. The ASCA imaging system was not designed to observe light pollution, so some thought and care went into developing a method to examine the light pollution at the sites.
Els Sebastian
Riddle Reed L.
Schöck Matthias
Skidmore Warren
Travouillon Tony
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