ARDQUAL is a shortform variant of QUALITY, used to set the temporary bad quality data flag of points within a binned dataset (most significant bit of the QUALITY byte), using a spatial file to define the region of interest.
ARDQUAL = QUALITY IGNORE FSEL=YWith this command, the pixels to be changed are defined by the spatial file. The user isn't prompted for axis ranges or data values to change.
See QUALITY for full details of the parameters and their keywords.