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GIRAFFE trending system: HISTORY plot
Last update: 2009-02-06T14:58:56 (UT)
same group: bias_Normal bias_Fast
close window history: 2003   2004   2005 2006 2007 2008 2009 2010 2011 2012   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
- reference bias
Plot
?		 Symb
?		 Source
*		 Average ? Thresholds ? N_
data		 QC1
parameter		 Data
downloads		 Remarks
method value unit method value
1 •QC1DB MEAN 156.74579 ADU 3SIG± 1.74641 34 median_master this | last_yr | all median BIAS level
2 •QC1DB MEAN 4.35706 e- 3SIG± 0.8168 34 sigma_raw this | last_yr | all RON in single raw frame
[! downloaded data come in ADU (=e-/2.30)]
3 •QC1DB MEDIAN 2.36475 e- 3SIG± 0.37631 34 sigma_master this | last_yr | all RON in master frame
[! downloaded data come in ADU (=e-/2.30)]
4 xQC1DB MEDIAN 0.064 ADU 3SIG± 0.01797 34 struct_row this | last_yr | all structure of master in X direction
5 xQC1DB MEDIAN 0.505 ADU 3SIG± 0.17302 34 struct_col this | last_yr | all structure of master in Y direction
*Data sources: QC1DB: QC1 database; LOCAL: local text file
This plot

This is the trending plot for the GIRAFFE QC parameters derived from BIAS frames.

These plots describe:
1. the BIAS level in masterbias frames,
2. the read noise (RON) of a single raw frame,
3. the read noise (RON) of a master frame,
4. the collapsed structure of a masterbias in X direction,
5. the collapsed structure in Y direction,
6. the number of bad pixels.

Find more information about GIRAFFE BIAS frames here.

Other QC parameters related to detector properties (like contamination, linearity, gain) are trended here.  

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