FORS1 trending system: HISTORY plot
Last update: 2007-07-17T14:28:41 (UT)
same group: CONAD FPN   DARK
close window history: 2001 2002 2003 2004 2005 2006 2007   HEALTH
  ... ... ... ...
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Plot
[info]
Symbol
[info]
Source* Average [info] Thresholds [info] N_data Data downloads Remarks
method value unit method value
1 QC1DB MEDIAN 8.100 e-/hr/px none   22 this | last_yr | all ABCD,1x1,high (Garching)
2 QC1DB MEDIAN 4.000 e-/hr/px none   22 this | last_yr | all ABCD,1x1,high (Garching)
3 QC1DB MEDIAN 7.810 e-/hr/px none   16 this | last_yr | all A,1x1,high (Garching)
4 QC1DB MEDIAN 4.000 e-/hr/px none   16 this | last_yr | all A,1x1,high (Garching)
*Data sources: QC1DB: QC1 database; LOCAL: local text file
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