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FORS2:
detector: bias
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FORS2 trending system: HEALTH CHECK report
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Last update: 2014-09-16T01:52:06 (UT)
  | now: 2014-09-16T03:26:18 (UT) muc01 QC pipeline: fors2-4.9.24 (installed 2014-03-11)
same group: med_master ron_raw ron_master fp_raw struct_raw pattern
General news:
FORS2 news:  
Report news:
DATE*: [?] 2014-09-09
report | NLT
2014-09-10
report | NLT
2014-09-11
report | NLT
2014-09-12
report | NLT
2014-09-13
report | NLT
2014-09-14
report | NLT
2014-09-15
no data | NLT
P...
Product quality:
products products products products products products no products
  last OPSLOG data:
2014-09-13*

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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
?
Source
*
OPS?
**
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB yes (8) MEDIAN 0.118 ADU VAL0,0.6 58 FP_r this | last_yr | all Chip 1, 100Kps/2ports/high_gain, 2x2 (only non-zero values are shown)
2 QC1DB yes (8) MEDIAN 0.139 ADU VAL0,0.7 42 FP_r this | last_yr | all Chip 2, 100Kps/2ports/high_gain, 2x2 (only non-zero values are shown)
3 QC1DB yes (7) MEDIAN 0.18 ADU VAL0,0.6 96 FP_r this | last_yr | all Chip 1, 200Kps/2ports/low_gain, 2x2 (only non-zero values are shown)
4 QC1DB yes (7) MEDIAN 0.217 ADU VAL0,0.7 97 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 text file | **OPS: OPSLOG data are included
Plot 1
scores: 9|
data source:fors2_bias
(QC1 database)
dataset:FP_r
median:0.118ADU
fixed thresholds:0...0.6ADU
N_data plotted:58
[click on plot for closeup]
Plot 2
scores: 7|
data source:fors2_bias
(QC1 database)
dataset:FP_r
median:0.139ADU
fixed thresholds:0...0.7ADU
N_data plotted:42
[click on plot for closeup]
Plot 3
scores: 10|
data source:fors2_bias
(QC1 database)
dataset:FP_r
median:0.18ADU
fixed thresholds:0...0.6ADU
N_data plotted:96
[click on plot for closeup]
Plot 4
scores: 10|
data source:fors2_bias
(QC1 database)
dataset:FP_r
median:0.217ADU
fixed thresholds:0...0.7ADU
N_data plotted:97
[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.  


General information

Click on any of the plots to see a close-up version.

If applicable, the latest values from Paranal ops logs are plotted as blue dots. More information about those values, including a download option, is available in the OPS column.

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