(1993 Jul. 28)
subject: Re:CCD charts
Dear Bill,
Thank you for your interest in my charts.
Coordinates are given in a unit of 0.02 arcsec. Our CCD covers
7 x 10 arcmin. The increasing direction of y correspends to the
north and x to the west, respectively. There is no rotation
between two charts.
The errors of the coordinates will be less than 0.5 arcsec and
magnitudes less than 0.1 mag in most cases.
Regards,
Taichi Kato

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