This plot shows the wavelength dispersion as calculated by the QC script.
The dispersion is given in micron / wavelength bin.
The pipeline reports
0.0114 (YJ) and 0.0200 (YJH) in the keyword QC MEDIAN DISPERSION
and
0.01042 (YJ) and 0.01905 (YJH) in the keywords DRS IFS DISPERSON and CD3_3.
The nominal values (out of the User Manual) are
0.0107 (YJ) and 0.0195 (YJH).
The values derived by measuring the arc line positons in the from the pipeline wavelength calibrated cube product are
0.0103 (YJ) and 0.01903 (YJH).
The black points show the values of the static DRS IFS DISPERSON header key.