| 
        
          | Plot ?
 | Symb ?
 | Source *
 | Average    ? | Thresholds ? | N_ data
 | QC1 parameter
 | Data downloads
 | Remarks |  
	  | method | value | unit | method | value |  
| 1 |  | QC1DB | MEDIAN | 996.614 | ADU | VAL | 980,1020 | 14 | qc_bias | this |
    last_yr |
    all | bias level, read mode = SlowPolarimetry, camera1& |  
| 2 |  | QC1DB | MEDIAN | 1000.69 | ADU | VAL | 978,1016 | 14 | qc_bias | this |
    last_yr |
    all | bias level, read mode = SlowPolarimetry, camera2 |  
| 3 |  | QC1DB | MEDIAN | 999.497 | ADU | VAL | 974,1014 | 14 | qc_bias | this |
    last_yr |
    all | bias level, read mode = FastPolarimetry, camera1 |  
| 4 |  | QC1DB | MEDIAN | 1001.23 | ADU | VAL | 980,1020 | 14 | qc_bias | this |
    last_yr |
    all | bias level, read mode = FastPolarimetry, camera2 |  
          |  |  
          | *Data sources: QC1DB: QC1 database; LOCAL: local data source |  
| Plot 1 scores:
  1|   |  | data source: | sphere_zimpol_bias_pol (QC1 database)
 |  | dataset: | qc_bias |  |  | median: | 996.614 | ADU |  | fixed thresholds: | 980...1020 | ADU |  | N_data plotted: | 14 |  | [click plot for closeup] | 
| Plot 2 scores:
  1|   |  | data source: | sphere_zimpol_bias_pol (QC1 database)
 |  | dataset: | qc_bias |  |  | median: | 1000.69 | ADU |  | fixed thresholds: | 978...1016 | ADU |  | N_data plotted: | 14 |  | [click plot for closeup] | 
| Plot 3 scores:
  1|   |  | data source: | sphere_zimpol_bias_pol (QC1 database)
 |  | dataset: | qc_bias |  |  | median: | 999.497 | ADU |  | fixed thresholds: | 974...1014 | ADU |  | N_data plotted: | 14 |  | [click plot for closeup] | This plot
| Plot 4 scores:
  1|   |  | data source: | sphere_zimpol_bias_pol (QC1 database)
 |  | dataset: | qc_bias |  |  | median: | 1001.23 | ADU |  | fixed thresholds: | 980...1020 | ADU |  | N_data plotted: | 14 |  | [click plot for closeup] | 
This plot shows the ZIMPOL raw frame bias level for readmode
FastPolarimetry and SlowPolarimetry and for both cameras CAM1 and CAM2.  The values are retrieved by using
a script. The median of the first plane of the raw frame cube 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. If configured, 
data points belonging to the latest date are specially marked
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
 |