This is the Health Check plot for monitoring the resolution of the GIRAFFE arclamp calibration data. We display here the resolving power R = λ0/Δλ. Δλ is the QC1 parameter mean_resol which is the mean of all accepted emission line widths. This plot monitors the HC data taken in high resolution (H525.8B) and low resolution (L543.1, Medusa1 and 2 only).
Up to 2008-01, these numbers are approximate. With pipeline version giraf-2.5 accurate numbers are provided. Only these should be taken for reference.
Check the RMS plot of this group for the typical rms of the dispersion solution, and the NLIN plot for the number of accepted lines.