This is a trending plot monitoring the stability of the VISIR WCU. The
"lamp_flat" parameter is calculated by the pipeline from the raw flat
field frames. The two first frames in the stack (taken at temp. 20C
and 10C of the WCU), are subtracted them from each other, the median
flux in the central area is calculated and normalized by DIT. The
values are displayed for the imaging detector.
General information
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.
If configured,
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
threshold lines
"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
mirror sites:
PL
HQ
score overview
