Using the CCDPACK programs to reduce data

CCDPACK reductions are based around a suite of programs (that the automated and GUI facilities rely on) that you can use directly. These programs are:

• MAKEBIAS - combines bias frames into a `master' bias calibration frame.
• DEBIAS - debiasses lists of data frames either by master bias subtraction or by estimation from the bias strips, applies bad data masks, extracts a subset of the data area, produces errors and detects saturated pixels values.
• MAKECAL - combines pre-flash or dark count frames into a `master' calibration frame.
• CALCOR - performs dark or flash count corrections on a list of frames.
• MAKEFLAT - combines flat fields into a `master' calibration flatfield.
• FLATCOR - performs the flatfield correction on a list of frames.

If you want to process your data completely by hand (or if the limitations of the automated processing are a problem) then the following sections will lead you through the various options. At the end of this section reduction scripts are shown as examples.