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MIDI trending system: HEALTH CHECK report
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Last update: 2015-03-06T18:25:27 (UT)
  | now: 2024-05-03T19:05:55 (UT) muc05 QC pipeline: midi-2.8.3 (installed 2014-10-20)
same group: RON LIN PRESS_TEMP
close window history: 2006 2007 2008 2009 2010 2011 2012 2013 2014   2015   HEALTH FULL
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*Date on this monitor changes at 21:00 UT
Print: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
- general comment: Increase of the RON is often due to power cuts and/or high pressure (see pressure plot)
Plot
?		 Symb
?		 Source
*		 Average ? Thresholds ? N_
data		 QC1
parameter		 Data
downloads		 Remarks
method value unit method value
1 •QC1DB none   ADU VAL10,15 62 median_masterron this | last_yr | all read-out noise of master frame (ADU)
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: 8|
data source:midi_detron
(QC1 database)
dataset:median_masterron•
average:none
fixed thresholds:10...15ADU
N_data plotted:62
[click on plot for closeup]
This plot

The readout noise of MIDI is monitored by taking a full-frame exposure with a large number of frames, with the MIDI shutter closed and with a minimum DIT. The standard deviation of the pixel level over the frames is computed by the pipeline for each pixel, as well as the median of the standard deviation over all the pixels and all the frames, which is plotted here (expressed in detector ADUs).  

General information

Click on any of the plots to see a close-up version.

The latest date is indicated on top of the plot.

If configured,

  • data points belonging to the latest 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 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