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FORS2 trending system: HEALTH CHECK report
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Last update: 2022-05-22T17:10:45 (UT)
  | now: 2022-05-22T20:38:42 (UT) muc01 QC pipeline: fors-5.6.1 (installed 2022-03-28)
same group: dark linearity gain flux_range   conad fp._noise
General news:
FORS2 news:  
Report news:
DATE*: [?] 2022-05-15
report | NLT
2022-05-16
report | NLT
2022-05-17
report | NLT
2022-05-18
report | NLT
2022-05-19
report | NLT
2022-05-20
report | NLT
2022-05-21
report | NLT
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*Date on this monitor changes at 21:00 UT
png: 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 0.00275 NONE VAL0.001,0.003 3 FPN_rel this | last_yr | all normalized fixed-pattern noise for chip 1, high gain
2 QC1DB MEDIAN 0.00223 NONE VAL0.001,0.003 5 FPN_rel this | last_yr | all normalized fixed-pattern noise for chip 2, high gain
3 QC1DB MEDIAN 0.00318 NONE VAL0.002,0.004 3 FPN_rel this | last_yr | all normalized fixed-pattern noise for chip 1, low gain
4 QC1DB MEDIAN 0.00254 NONE VAL0.002,0.004 3 FPN_rel this | last_yr | all normalized fixed-pattern noise for chip 2, low gain
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: not implemented
data source:fors2_scrflat
(QC1 database)
dataset:FPN_rel
median:0.00275NONE
fixed thresholds:0.001...0.003NONE
N_data plotted:3
[click plot for closeup]
Plot 2
scores: not implemented
data source:fors2_scrflat
(QC1 database)
dataset:FPN_rel
median:0.00223NONE
fixed thresholds:0.001...0.003NONE
N_data plotted:5
[click plot for closeup]
Plot 3
scores: not implemented
data source:fors2_scrflat
(QC1 database)
dataset:FPN_rel
median:0.00318NONE
fixed thresholds:0.002...0.004NONE
N_data plotted:3
[click plot for closeup]
Plot 4
scores: not implemented
data source:fors2_scrflat
(QC1 database)
dataset:FPN_rel
median:0.00254NONE
fixed thresholds:0.002...0.004NONE
N_data plotted:3
[click plot for closeup]
This plot

The fixed-pattern noise is computed in the following way: The difference of two 100x100 sub-frames of the same master flat field image is determined. These two sub-frames are are shifted with respect to each other by 10 pixels in X- and Y-direction. The population standard deviation of the difference frame, divided by the square root of 2, minus the photon noise (geometrically subtracted) yields the fixed-pattern noise, which is then divided by the median of the respective region. More information can be found on the plot tutorial page  


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