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FORS2:
detector: bias
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FORS2 trending system: HEALTH CHECK report
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Last update: 2015-08-02T16:50:10 (UT)
  | now: 2015-08-03T02:59:50 (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*: [?] 2015-07-27
no data | NLT
2015-07-28
no data | NLT
2015-07-29
report | NLT
2015-07-30
report | NLT
2015-07-31
report | NLT
2015-08-01
report | NLT
2015-08-02
report | NLT
r...
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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
2015-04-22: value of BIAS master median changed after adopting new pipeline v.5.0.9; they are now calculated after the offset (prescan) subtraction
Plot
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Symb
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Source
*
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB MEDIAN 2.11 ADU VAL-6,6 94 median_master this | last_yr | all Chip 1, 100Kps/2ports/high_gain, 2x2
2 QC1DB MEDIAN -3.61 ADU VAL-8.5,0. 90 median_master this | last_yr | all Chip 1, 200Kps/2ports/low_gain, 2x2
3 xQC1DB MEDIAN 12.1 degree VAL0,20 236 ins_focus_temp this | last_yr | all Temperature at Instrument Focus
4 QC1DB MEDIAN 3 ADU VAL-5.,7.5 94 median_master this | last_yr | all Chip 2, 100Kps/2ports/high_gain, 2x2
5 QC1DB MEDIAN -7.11 ADU VAL-10.,-3. 90 median_master this | last_yr | all Chip 2, 200Kps/2ports/low_gain, 2x2
6 xQC1DB MEDIAN 12.1 degree VAL0,20 236 ins_focus_temp this | last_yr | all Temperature at Instrument Focus
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: 6|
data source:fors2_bias
(QC1 database)
dataset:median_master
median:2.11ADU
fixed thresholds:-6...6ADU
N_data plotted:94
[click on plot for closeup]
Plot 2
scores: 5|
data source:fors2_bias
(QC1 database)
dataset:median_master
median:-3.61ADU
fixed thresholds:-8.5...0.0ADU
N_data plotted:90
[click on plot for closeup]
Plot 3
scores: not implemented
data source:fors2_bias
(QC1 database)
dataset:ins_focus_tempx
median:12.1degree
fixed thresholds:0...20degree
N_data plotted:236
[click on plot for closeup]
Plot 4
scores: 6|
data source:fors2_bias
(QC1 database)
dataset:median_master
median:3ADU
fixed thresholds:-5.0...7.5ADU
N_data plotted:94
[click on plot for closeup]
Plot 5
scores: 5|
data source:fors2_bias
(QC1 database)
dataset:median_master
median:-7.11ADU
fixed thresholds:-10.0...-3.0ADU
N_data plotted:90
[click on plot for closeup]
Plot 6
scores: not implemented
data source:fors2_bias
(QC1 database)
dataset:ins_focus_tempx
median:12.1degree
fixed thresholds:0...20degree
N_data plotted:236
[click on plot for closeup]
This plot

The bias level (in ADU) is evaluated as the median value of all pixels in the master bias. As of 2015-04-22 the bias level is given after offset (prescan) subtraction (change after adopting new pipeline v.5). The trending is done for 2x2 binning only. The bottom pannels show temperature in the focus of the instrument, read from the Chip1 and Chip2 data files. This is to trace any possible correlation of the bias level with temperature. Details can be found in the plot tutorial.

DB Name: fors2_bias
TPL.ID: img_cal_bias
Fits header keyword: QC.MBIAS.LEVEL
QC1 DB parameter: median_master

 
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