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FORS2 trending system: HEALTH CHECK report
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Last update: 2024-04-24T17:06:44 (UT)
  | now: 2024-04-25T04:30:03 (UT) muc01 QC pipeline: fors-5.6.10 (installed 2024-04-19)
same group: angle_offset pol_offset instr_pol
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*Date on this monitor changes at 21:00 UT
png: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
Plot
?		 Symb
?		 Source
*		 Average ? Thresholds ? N_
data		 QC1
parameter		 Data
downloads		 Remarks
method value unit method value
1 .QC1DB none   NONE VAL-1,2 11 rel_l_offset this | last_yr | all instrumental polarization (in units of sigma) for all bands
1 •QC1DB none   NONE none  3 rel_l_offset this | last_yr | all instrumental polarization (in units of sigma) for the B band
1 ♦QC1DB none   NONE none  4 rel_l_offset this | last_yr | all instrumental polarization (in units of sigma) for the V band
1 ▲QC1DB none   NONE none  2 rel_l_offset this | last_yr | all instrumental polarization (in units of sigma) for the R band
1 ■QC1DB none   NONE none  2 rel_l_offset this | last_yr | all instrumental polarization (in units of sigma) for the I band
2 .QC1DB none   NONE none  11 err_l_offset this | last_yr | all sigma of the instrumental polarization for all bands
2 •QC1DB none   NONE none  3 err_l_offset this | last_yr | all sigma of the instrumental polarization for the B band
2 ♦QC1DB none   NONE none  4 err_l_offset this | last_yr | all sigma of the instrumental polarization for the V band
2 ▲QC1DB none   NONE none  2 err_l_offset this | last_yr | all sigma of the instrumental polarization for the R band
2 ■QC1DB none   NONE none  2 err_l_offset this | last_yr | all sigma of the instrumental polarization for the I band
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: 2|
data source:fors2_std_pmos
(QC1 database)
dataset:
(numbers below apply to this dataset)		rel_l_offset.
average:none
fixed thresholds:-1...2NONE
N_data plotted:11
[click plot for closeup]
Plot 2
scores: not implemented
data source:fors2_std_pmos
(QC1 database)
dataset:
(numbers below apply to this dataset)		err_l_offset.
average:none
thresholds:none
N_data plotted:11
[click plot for closeup]
This plot

For unpolarized standard stars the pipeline determines the measured value. Since polarization parameters are usually tabulated for broad-band filters the pipeline selects the broad-band filter closest to the central wavelength of the grism.
Values significantly different from zero might indicate instrumental polarization. Since the error of the polarization plays an important role here we plot the instruments polarization normalized with its error. Only data with an error below 0.5 in instrumental polarization are trended.  

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