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FORS2:
detector: bias
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FORS2 trending system: HEALTH CHECK report
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Last update: 2015-07-31T16:51:29 (UT)
  | now: 2015-08-01T08:23:38 (UT) muc01 QC pipeline: fors-5.0.9 (installed 2015-04-23)
same group: med_master ron_raw ron_master fp_raw struct_raw pattern
General news: Please note the new feature 'forced refresh', see button below, right-hand side of 'ngas' ↓.
FORS2 news:  
Report news:
DATE*: [?] 2015-07-25
report | NLT
2015-07-26
no data | NLT
2015-07-27
no data | NLT
2015-07-28
no data | NLT
2015-07-29
report | NLT
2015-07-30
report | NLT
2015-07-31
no data | NLT
r...
Raw CAL displays:
raw no raw files no raw files no raw files raw raw no raw files
P...
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products no products no products no products products products no products
 
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scores&comments | history ... | plot tutorial ... | contact                 daily/often; important to check     [?]
*Date on this monitor changes at 21:00 UT
Print: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
Plot
?
Symb
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Source
*
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB MEDIAN 0.143 ADU VAL0,0.6 60 FP_r this | last_yr | all Chip 1, 100Kps/2ports/high_gain, 2x2 (only non-zero values are shown)
2 QC1DB MEDIAN 0.15 ADU VAL0,0.7 53 FP_r this | last_yr | all Chip 2, 100Kps/2ports/high_gain, 2x2 (only non-zero values are shown)
3 QC1DB MEDIAN 0.191 ADU VAL0,0.6 90 FP_r this | last_yr | all Chip 1, 200Kps/2ports/low_gain, 2x2 (only non-zero values are shown)
4 QC1DB MEDIAN 0.201 ADU VAL0,0.7 88 FP_r this | last_yr | all Chip 2, 200Kps/2ports/low_gain, 2x2 (only non-zero values are shown)
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: 5|
data source:fors2_bias
(QC1 database)
dataset:FP_r
median:0.143ADU
fixed thresholds:0...0.6ADU
N_data plotted:60
[click on plot for closeup]
Plot 2
scores: 3|
data source:fors2_bias
(QC1 database)
dataset:FP_r
median:0.15ADU
fixed thresholds:0...0.7ADU
N_data plotted:53
[click on plot for closeup]
Plot 3
scores: 5|
data source:fors2_bias
(QC1 database)
dataset:FP_r
median:0.191ADU
fixed thresholds:0...0.6ADU
N_data plotted:90
[click on plot for closeup]
Plot 4
scores: 5|
data source:fors2_bias
(QC1 database)
dataset:FP_r
median:0.201ADU
fixed thresholds:0...0.7ADU
N_data plotted:88
[click on plot for closeup]
This plot

The difference between the first raw bias and the second raw bias (in ADU) shifted by 10x10 pixels, is computed. This is the combination of fixed pattern noise and read out noise (scaled by sqrt(2)). The population standard deviation of this difference is computed and divided by the square root of 2. The read out noise contribution evaluated as QC OUTi RON is then quadratically subtracted from the total noise. Details can be found in the plot tutorial.

DB Name: fors2_bias
TPL.ID: img_cal_bias
Fits header keyword: QC.BIAS.FPN
QC1 DB parameter: FP_r
 


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