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FORS2:
LSS: wavelength calibration
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FORS2 trending system: HEALTH CHECK report
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Last update: 2024-06-21T17:09:56 (UT)
  | now: 2024-06-22T10:49:48 (UT) muc01 QC pipeline: fors-5.6.10 (installed 2024-04-19)
same group: lambda_c resolution nwave lambda_temp   EEV:lambda_c EEV:resolution EEV:nwave
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.
The links to KMOS, UVES, and ESPRESSO have been moved to a new section (qcFlow operational) at the lower part of the navigation bar.
FORS2 news:  
Report news:
DATE*: [?] 2024-06-15
report | NLT
2024-06-16
report | NLT
2024-06-17
report | NLT
2024-06-18
report | NLT
2024-06-19
report | NLT
2024-06-20
report | NLT
2024-06-21
report | NLT
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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
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Symb
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Source
*
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB none   Å none  79 central_wlen this | last_yr | all central wavelength for chip 1 vs. focus temperature
2 QC1DB none   Å none  80 central_wlen this | last_yr | all central wavelength for chip 2 vs. focus temperature
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: not implemented
data source:fors2_lss_wave
(QC1 database)
dataset:central_wlen
average:none
thresholds:none
N_data plotted:79
[click plot for closeup]
Plot 2
scores: not implemented
data source:fors2_lss_wave
(QC1 database)
dataset:central_wlen
average:none
thresholds:none
N_data plotted:80
[click plot for closeup]
This plot

After the wavelength calibration is obtained from an LSS arc lamp exposure, the wavelength corresponding to the central CCD pixel is calculated. The values trended here are for the 300V grism with no filter and a slit width of 0.29". They are plotted vs. the temperature at the instrument focus.

DB Name: fors2_lss_wave
TPL.ID: FORS2_lss_cal_daycalib
QC1 DB parameter: central_wlen

More information can be found on the plot tutorial page  
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