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VISIR trending system: HISTORY report
Last update: 2012-07-15T02:11:20 (UT)
same group: read-noise dark det-temp
close window history: 2006 2007 2008 2009 2010 2011   2012   2013   2014 2015   HEALTH
  ... ... ... ... ... ... ...
*Date on this monitor changes at 21:00 UT
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Plot
?		 Symb
?		 Source
*		 Average ? Thresholds ? N_
data		 QC1
parameter		 Data
downloads		 Remarks
method value unit method value
1 •QC1DB MEAN 57.6891 ADU VAL45,70 35 ron2 this | last_yr | all read-out-noise of the imaging detector
2 •QC1DB MEAN 21.5002 ADU VAL0,70 67 ron2 this | last_yr | all read-out-noise of the spectroscopic detector
*Data sources: QC1DB: QC1 database; LOCAL: local text file
Plot 1
data source:visir_dark_img
(QC1 database)
dataset:ron2•
mean:57.6891ADU
fixed thresholds:45...70ADU
N_data plotted:35
[click on plot for closeup]
Plot 2
data source:visir_dark_spc
(QC1 database)
dataset:ron2•
mean:21.5002ADU
fixed thresholds:0...70ADU
N_data plotted:67
[click on plot for closeup]
This plot

Trending plot monitoring the read-out-noise (RON) measured from the raw(3)-raw(2) difference frame.  

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