Master calibration images (Bias, Dark and Flat field)

The master calibration images of the Bias, Dark and Flat Field are shown. These images are the results of the reduction process. Furthermore, plots with the mean values of the used single frames are shown. For the bias and the flat field all images are used in general. On the contrary, for the dark, if the fraction of the mean values between the first and the second set is to large (1.5), then only the images of the second set (taken in the morning) are used. Finally, a counts distribution (elec/sec) of the master dark image is shown. From these distributions the noise is estimate via a Gaussian fit. This fit is shown as solid line in the distribution plot.