residual dark distribution April 1993, 1 CCD mode residual dark distribution April 1993, 4 CCD mode

residucal dark distribution November 1994, 1 CCD mode residual dark distribution November 1994, 4 CCD mode

Examples of the residual dark distribution (RDD) in 1-CCD and 4-CCD modes at two different epochs. Normalization of the plot reflects exposure time and source flux, and should be regarded as arbitrary. The solid line is the best-fit model function (eq. 1).