This is the trending report for UVES QC parameters derived from DARK frames.
These frames are taken approximately once per month, as a set of 3
consecutive exposures of 3600 secs each. These data are de-biased and
combined into a MASTER_DARK, in which the average dark level is
measured (in ADU/px/hr).
These plots describe:
the DARK current in master DARK frames of the BLUE chip in the 1x1 binning, 225kHz, low gain readout mode
same for REDL chip, 1x1
same for REDU chip, 1x1
the DARK current in master DARK frames of the BLUE chip in the 2x2 binning, 50kHz, high gain readout mode
same for REDL chip, 2x2
same for REDU chip, 2x2
Find more information about UVES DARK frames here.
Basic QC parameters related to detector properties (like median level,
ReadOut Noise, etc ) are trended
Click on any of the plots to see a close-up version.
The latest date is indicated on top of the plot, data points belonging to that date are specially marked.
statistical averages are indicated by a solid line, and thresholds by broken lines
outliers are marked by a red asterisk. They are defined as data points outside the
"aliens" (= data points outside the plot Y limits) are marked by a red arrow (↑ or ↓)
you can download the data for each parameter set if the 'Data downloads' link shows up