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NACO trending system: HISTORY plot
Last update: 2009-04-15T21:01:16 (UT)
same group: RON_DAILY RON_NONDAILY   8-col-noise 8col_noise_zoomed
close window history: 2004 2005 2006 2007 2008   2009   2010   2011 2012   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 MEDIAN 22.0625 ADU VAL5,48 92 dark_median this | last_yr | all dark current for darks DIT=300 s
2 •QC1DB MEDIAN 2.89 ADU VAL2.1,3.6 128 dark_median this | last_yr | all dark current for darks DIT=0.5 s
*Data sources: QC1DB: QC1 database; LOCAL: local text file
This plot

Median of dark current. Data are shown for two instrumental setups: 300s DIT, FowlerNSamp, HighSensitivity and 0.5s DIT, Double ReadResetRead, HighSensitivity.  

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