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all KPI reports
FORS1:
detector: bias
old CCD
(before 2007-03-25)
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FORS1 trending system: History Plots
Last update: 2009-04-09T06:50:09 (UT)
| now: 2022-05-22T04:02:01 (UT)  
same group: med_master ron_raw ron_master fp_raw struct_raw
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- png file - advanced studies: QC1 browser | QC1 plotter
 
Plot
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Symb
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Source
*
OPS?
**
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB no MEDIAN 3.61 ADU VAL2.9,4.3 70 struct_r this | last_yr | all 100Kps/2ports/high_gain, 2x2 (only non-zero values are shown)
2 QC1DB no MEDIAN 1.69 ADU VAL0.5,2.1 70 struct_r this | last_yr | all 100Kps/2ports/high_gain, 2x2 (only non-zero values are shown)
3 QC1DB no MEDIAN 0.47 ADU VAL0.1,0.8 79 struct_r this | last_yr | all 200Kps/2ports/low_gain, 2x2 (only non-zero values are shown)
4 QC1DB no MEDIAN 0.53 ADU VAL0.2,0.9 79 struct_r this | last_yr | all 200Kps/2ports/low_gain, 2x2 (only non-zero values are shown)
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate that OPSLOG data are included
This plot

The population standard deviation of the pixel values of the first input raw bias is computed. This is the combination of structure, fixed pattern noise, and read out noise. The read out noise and the fixed pattern noise contributions are then quadratically subtracted.  


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