The dark must have a minimum exposure of 20 seconds.

Clipping is at 2,3,3 standard deviations.

Bad values are deemed to be those beyond the range of the clipped mean $+$/$-$ 5 standard deviations.

Intermediate frames are deleted.

Sub-arrays are supported.

The bad-pixel mask is called bpm_$<$frame_number$>$.

The bad-pixel mask is filed in $ORAC_DATA_OUT/index.mask.

The processing engines are from the Starlink package Kappa.

Uses the Starlink NDF format.

History is recorded within the data files.

The title of the data is "bpm_$<$frame_number$>$".

Error propagation is not used.