Here we monitor the lamp flux in ADU/sec and the flat counts in ADU of the 
daily acquired <b>health check</b> IFU flat
with setup <b>100k/1pt/hg</b>. These HC IFU flats are composed of
one raw frame only.
The template is usually started twice a day, once at instrument startup and
once at the end of the day-time calibrations
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The lamp flux is scored, the flat counts not.</font><p><font size="2">

Decrease in the lamp flux might indicate problem with the VIS ADC.
For more information see the <a
href="http://www.eso.org/observing/dfo/quality/XSHOOTER/qc/flat_qc1.html">plot
tutorial page</a>.

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New since 2019-11-26: In the <a href="http://www.eso.org/observing/dfo/quality/XSHOOTER/reports/HEALTH/trend_report_ADC_VIS_HC.html"> slice_rms </a> we monitor 
the ratio of fluxes between the three slices of the daily IIFU health check flat in a red and a blue roder.
Here we monitor the stdev of the flux within the central slice window. Fringes in the flat field frame increases the stdev which is monitores here.