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FORS2 trending system: HEALTH CHECK report
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Last update: 2014-04-20T02:29:32 (UT)
  | now: 2014-04-20T18:11:40 (UT) muc01 QC pipeline: fors2-4.9.24 (installed 2014-03-11)
same group: dark linearity gain flux_range   conad fp._noise
General news:
FORS2 news:  
Report news:
DATE*: [?] 2014-04-13
report | NLT
2014-04-14
report | NLT
2014-04-15
report | NLT
2014-04-16
report | NLT
2014-04-17
report | NLT
2014-04-18
report | NLT
2014-04-19
report | NLT
P...
Product quality:
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  last OPSLOG data:
2014-04-18*

last files ...
monitor

scores&comments | history ... | plot tutorial ... | contact               [?]
*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 (0) MEDIAN 0.705 e-/ADU VAL0.67,0.76 20 conad this | last_yr | all Chip 1, high gain
2 QC1DB yes (0) MEDIAN 0.695 e-/ADU VAL0.64,0.74 19 conad this | last_yr | all Chip 2, high gain
3 QC1DB yes (0) MEDIAN 1.28 e-/ADU VAL1.21,1.40 20 conad this | last_yr | all Chip 1, low gain
4 QC1DB yes (0) MEDIAN 1.25 e-/ADU VAL1.18,1.38 20 conad this | last_yr | all Chip 2, low gain
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: OPSLOG data are included
Plot 1
scores: 2|
data source:fors2_scrflat
(QC1 database)
dataset:conad
median:0.705e-/ADU
fixed thresholds:0.67...0.76e-/ADU
N_data plotted:20
[click on plot for closeup]
Plot 2
scores: 2|
data source:fors2_scrflat
(QC1 database)
dataset:conad
median:0.695e-/ADU
fixed thresholds:0.64...0.74e-/ADU
N_data plotted:19
[click on plot for closeup]
Plot 3
scores: 2|
data source:fors2_scrflat
(QC1 database)
dataset:conad
median:1.28e-/ADU
fixed thresholds:1.21...1.4e-/ADU
N_data plotted:20
[click on plot for closeup]
Plot 4
scores: 2|
data source:fors2_scrflat
(QC1 database)
dataset:conad
median:1.25e-/ADU
fixed thresholds:1.18...1.38e-/ADU
N_data plotted:20
[click on plot for closeup]
This plot

If the exposure time of the first two raw screen flat fields in the input set of frames is the same (within 4%), the difference frame is computed. Then the whole readout port is divided into a chessboard of 16x16 boxes. For each one of these boxes, the median signal level from the first raw frame is divided by the variance in the difference frame scaled by 2. The median value of the 16x16 values obtained is the accepted value for the conversion factor. CONAD QC parameters are trended per readout mode for the B filter only (historically B_BESS, now b_HIGH). More information can be found on the plot tutorial page  


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