The recipe midi_profile is applied to chopped PHOTOMETRY frames. For
each window on the detector (Data1, Data2 for HIGH_SENS and Data1 to
Data4 for SCI_PHOT), a profile is identified and a mask is created.

This recipe calculates the maximum intensity of the normalized profile
for five bins. This maximum intensity of the normalized profile
(HIERARCH ESO QC Y1 MAXSUM BIN3) should give an indication of the
spectrum width in the sense that if the profile is broader (vibration
of the telescope) the maximum intensity should drop.