ORAC-DR optionally lets you inspect the raw frames, and the processed data as they are created. There is a variety of graphical methods available, including histograms and contour plots, if you choose a KAPPA GWM widget. Most people prefer a simple scaled image display with GAIA. This offers facilities to inspect and analyse the data, and both pixel and sky co-ordinates of the cursor position are presented. The selection of frame types to display, where they should appear, and how they are scaled are configurable using a simple text file or a special GUI tool oracdisp. See SUN/230 for details and examples.
Processing offline, there is less need to see the data displayed in real time. If you wish to accelerate the processing switch off the display option.
% oracdr -nodisplay ...
ORAC-DR -- spectroscopy data reduction