FORS1 calibration table guide: bad pixel table

Table guide: bad pixel table

The bad pixel table contains areas of defects on the CCD. A pixel is defined as defect if its response is lower by more than 50% or higher by more than 200% of the mean adjacent level. A series of 10 bad pixels defines a bad column.

Each row of the table defines a bad column or a bad pixel area. Bad pixel areas are rectangular in shape.

FITS keyword content

X X coordinate of a bad column

XSTART , XEND X coordinates of bad pixel area

YSTART, YEND Y coordinates of bad pixel area

other columns are technical

FITS keyword	content
X	X coordinate of a bad column
XSTART , XEND	X coordinates of bad pixel area
YSTART, YEND	Y coordinates of bad pixel area
other columns are technical