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FORS2 trending system: HEALTH CHECK report
HELP USERS-GUIDE MORE
Last update: 2025-10-30T17:12:26 (UT)
  | now: 2025-10-31T03:32:16 (UT) muc01 QC pipeline: fors-5.8.3 (installed 2025-05-12)
same group: angle_offset pol_offset instr_pol
General news: NOTE: The Health Check and calChecker services are moved to qcFlow on an instrument by instrument basis. The current pages will not be updated any longer once the move has been finished.
FORS2 news:  
Report news:
DATE*: [?] 2025-10-24
report | NLT 		2025-10-25
report | NLT 		2025-10-26
report | NLT 		2025-10-27
report | NLT 		2025-10-28
report | NLT 		2025-10-29
report | NLT 		2025-10-30
report | NLT
r...
Raw CAL displays:
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CAL product quality:
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scores&comments | history ... | plot tutorial ... | contact | HC_docu... | quality events...               [?] 		*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-0.1,0.1 9 l_offset this | last_yr | all relative difference between measured linear polarization and catalog value for all bands
1 •QC1DB none   NONE none  0 l_offset this | last_yr | all relative difference between measured linear polarization and catalog value for the B band
1 ♦QC1DB none   NONE none  0 l_offset this | last_yr | all relative difference between measured linear polarization and catalog value for the V band
1 ▲QC1DB none   NONE none  8 l_offset this | last_yr | all relative difference between measured linear polarization and catalog value for the R band
1 ■QC1DB none   NONE none  1 l_offset this | last_yr | all relative difference between measured linear polarization and catalog value for the I band
2 .QC1DB none   NONE none  9 err_l_offset this | last_yr | all error of the relative difference between measured linear polarization and catalog value for all bands
2 •QC1DB none   NONE none  0 err_l_offset this | last_yr | all error of the relative difference between measured linear polarization and catalog value for the B band
2 ♦QC1DB none   NONE none  0 err_l_offset this | last_yr | all error of the relative difference between measured linear polarization and catalog value for the V band
2 ▲QC1DB none   NONE none  8 err_l_offset this | last_yr | all error of the relative difference between measured linear polarization and catalog value for the R band
2 ■QC1DB none   NONE none  1 err_l_offset this | last_yr | all error of the relative difference between measured linear polarization and catalog value for the I band
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: 1|
data source:fors2_std_pmos
(QC1 database)
dataset:
(numbers below apply to this dataset)		l_offset.
average:none
fixed thresholds:-0.1...0.1NONE
N_data plotted:9
[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:9
[click plot for closeup]
This plot

For polarized standard stars the pipeline determines the difference between the measured linear polarization and the value tabulated in the catalogue. 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. The difference is then normalized by dividing through the tabulated value.  

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