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FORS1:
old CCD
(before 2007-03-25)
detector: parameters
Other HC:
QC links:
[page auto-refreshes after 60 sec]            [press Ctrl+R to enforce refresh of scores and dates]
FORS1 trending system: History Plots
Last update: 2009-04-29T13:55:13 (UT)
| now: 2022-05-23T16:44:03 (UT)  
same group: CONAD FPN   DARK
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- png file - advanced studies: QC1 browser | QC1 plotter
 
Plot
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Symb
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Source
*
OPS?
**
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB no MEDIAN 9.61 e-/hr/px none   17 dark_avg this | last_yr | all ABCD,1x1,high (Garching)
2 QC1DB no MEDIAN 3.92 e-/hr/px none   17 sigma_dark_avg this | last_yr | all ABCD,1x1,high (Garching)
3 QC1DB no MEDIAN 8.77 e-/hr/px none   19 dark_avg this | last_yr | all A,1x1,high (Garching)
4 QC1DB no MEDIAN 3.97 e-/hr/px none   19 sigma_dark_avg this | last_yr | all A,1x1,high (Garching)
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate that OPSLOG data are included
This plot

Dark frames are taken rarely. Used CCD modes are: high gain, 4 and 1 ports. The typical exposure time is 1800 sec. The FORS pipeline generates master DARKs from input raw DARKs with master BIAS subtracted. Dark current: is computed in from the median master dark frame level in ADU/hr/px and transformed into electrons by using the conversion factor CONAD (in the case of 4 ports a mean CONAD is used).  


General information

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