This plots shows detector related QC parameters derived from 
BIAS health check calibrations of the xshooter acquisition and
guiding camera (AGC).  It is a 562 x 528 pixel technical CCD.
For the definition of the QC parameters, please see the corresponding 
<a href=" http://www.eso.org/observing/dfo/quality/XSHOOTER/qc/bias_qc1.html">section</a> 
of the UVB-arm and VIS-arm science detector. 
On 2014-01-09 the detector operations mode was switched from DET.OUT1.GAININD = 8 to DET.OUT1.GAININD = 4.