This is the Health Check plot for the width of the fibre signal in the GIRAFFE
flat field calibration data. We display the QC1 parameter mean_width
as derived from the pipeline product FF_LOCWIDTH. This plot monitors all
setups. </font><p><font size="2">

The purpose of this plot is to monitor the spectral format as well as the
pipeline recipe gimasterflat. The currently used limits are purely empirical
and are meant to flag outliers. </font><p><font size="2">

Note that all data for 2006-09 and earlier were calculated with a different
algorithm and are smaller.