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FORS2 trending system: HEALTH CHECK report
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Last update: 2024-06-21T17:16:29 (UT)
  | now: 2024-06-22T09:26:34 (UT) muc01 QC pipeline: fors-5.6.10 (installed 2024-04-19)
same group: dark linearity gain flux_range   conad fp._noise
General news: NOTE: The Health Check and calChecker services are moved to qcFlow on an instrument by instrument basis. The current pages will not be updated any longer once the move has been finished.
The links to KMOS, UVES, and ESPRESSO have been moved to a new section (qcFlow operational) at the lower part of the navigation bar.
FORS2 news:  
Report news:
DATE*: [?] 2024-06-15
report | NLT
2024-06-16
report | NLT
2024-06-17
report | NLT
2024-06-18
report | NLT
2024-06-19
report | NLT
2024-06-20
report | NLT
2024-06-21
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
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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 0.0112 NONE VAL0.0105,0.012 21 FPN_rel this | last_yr | all normalized fixed-pattern noise for chip 1, high gain
2 QC1DB MEDIAN 0.0109 NONE VAL0.0105,0.0118 21 FPN_rel this | last_yr | all normalized fixed-pattern noise for chip 2, high gain
3 QC1DB MEDIAN 0.0113 NONE VAL0.0108,0.0121 22 FPN_rel this | last_yr | all normalized fixed-pattern noise for chip 1, low gain
4 QC1DB MEDIAN 0.011 NONE VAL0.0105,0.0118 22 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: 2|
data source:fors2_scrflat
(QC1 database)
dataset:FPN_rel
median:0.0112NONE
fixed thresholds:0.0105...0.012NONE
N_data plotted:21
[click plot for closeup]
Plot 2
scores: 2|
data source:fors2_scrflat
(QC1 database)
dataset:FPN_rel
median:0.0109NONE
fixed thresholds:0.0105...0.0118NONE
N_data plotted:21
[click plot for closeup]
Plot 3
scores: 2|
data source:fors2_scrflat
(QC1 database)
dataset:FPN_rel
median:0.0113NONE
fixed thresholds:0.0108...0.0121NONE
N_data plotted:22
[click plot for closeup]
Plot 4
scores: 2|
data source:fors2_scrflat
(QC1 database)
dataset:FPN_rel
median:0.011NONE
fixed thresholds:0.0105...0.0118NONE
N_data plotted:22
[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