This is the trending plot monitoring the stability of the GIRAFFE SIMCAL arclamp and the 5 fibre systems.
 These data are derived from the daily SIMLAMP,TAL health check measurements (5 with the HR grating, H525.8B setting; one with the LR grating, L543.1).</font><p><font size="2">
</font><p><font size="2"> The values calculated by the QC script and the new pipeline recipe (PIPE11188) are both shown in the plots (from july 2024). The differences between the previous calculaion is that several lines are used to get the flux
</font><p><font size="2">
ZZ<b>Plots 1-5.</b> For each of the five fibre systems (in H525.8B setting),
emission lines are selected,  the intensity
is integrated and divided by the EXPTIME. The resulting flux, in counts/sec, is trended over
time.
</font><p><font size="2">

<b>Plot 6:</b> The same is done for the Medusa1 L543.1 setting.</font><p><font size="2">
 
If a certain
trend effect is visible in *all* slits, it is likely to be caused by the lamp. If it shows up in one fibre system only, it originates
in that particular fibre system.</p>

Find more information <a href="http://www.eso.org/qc/GIRAFFE/qc/lamp_qc1.html">here</a>. The SIMLAMP data are also used to evaluate the 
<a href="http://www.eso.org/qc/GIRAFFE/reports/HEALTH/trend_report_STABILITY_HC.html">grating stability</a>.