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FORS1:
old CCD
(before 2007-03-25)
detector: bias (high gain)
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FORS1 trending system: History Plots
Last update: 2009-04-29T14:04:34 (UT)
| now: 2014-07-22T20:14:43 (UT)  
same group: med_mast_H ron_raw_H ron_mast_H fp_raw_H struct_raw_H
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Plot
?
Symb
?
Source
*
OPS?
**
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB yes (0) MEDIAN 207.0 ADU 3SIG± 57.07218 55 median_masterA this | last_yr | all 4port readout (Garching)
2 QC1DB yes (0) MEDIAN 208.8 ADU 3SIG± 59.5144 55 median_masterB this | last_yr | all 4port readout (Garching)
4 QC1DB yes (0) MEDIAN 207.8 ADU 3SIG± 56.60787 55 median_masterC this | last_yr | all 4port readout (Garching)
5 QC1DB yes (0) MEDIAN 210.60001 ADU 3SIG± 56.4883 55 median_masterD this | last_yr | all 4port readout (Garching)
6 QC1DB yes (0) MEDIAN 211.8 ADU 3SIG± 70.78844 54 median_masterA this | last_yr | all 1port readout (Paranal)
3 xQC1DB yes (0) MEDIAN 14.3 ADU 3SIG± 5.51548 158 ins_focus_temp this | last_yr | all Temperature at Instrument Focus
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate that OPSLOG data are included
This plot

The bias level (in ADU) is evaluated as the median value (per port) of all pixels in the master bias.  


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