An experimental test of the photometric calibration of the guide star catalog for the Spectrum-UV (WSO/UV) project |
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| Authors: | A S Shugarov N V Chupina A E Piskunov N V Kharchenko |
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| Institution: | 1.Institute of Astronomy,Russian Academy of Sciences,Moscow,Russia;2.Main Astronomical Observatory,National Academy of Sciences of Ukraine,Kiev,Ukraine |
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| Abstract: | A test of the photometric calibration accuracy for the guide-star catalog (Master Catalog) of the Spectrum-UV project (World
Space Observatory—Ultraviolet) has been performed using CCD observations in a spectral band close to that of the guide sensor
system of the T-170M space telescope. The mean photometric uncertainty of the Master Catalog at 14
m
–17
m
is 0.23
m
; variations in this uncertainty over the sky are within a factor of two. About 2% of the stars in the Master Catalog were
found to have photometric errors in excess of 2
m
. We analyze the correspondence of large photometric errors to flags of the Master Catalog. |
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| Keywords: | |
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