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FORS1:
MOS: wavelength calibration
old CCD
(before 2007-03-25)
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FORS1 trending system: History Plots
Last update: 2009-04-09T06:57:06 (UT)
| now: 2024-04-25T08:51:45 (UT)  
same group: lambda_c lambda_temp resolution nwave
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- png file - advanced studies: QC1 browser | QC1 plotter
 
Plot
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Symb
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Source
*
OPS?
**
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB no MEDIAN 531.80261 NONE 5%± 26.59013 61 central_resol this | last_yr | all C1 (GG435)
2 QC1DB no MEDIAN 530.21515 NONE 5%± 26.51076 61 central_resol this | last_yr | all C2 (GG435)
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate that OPSLOG data are included
This plot

From a wavelength calibrated MOS arc lamp exposure, the mean spectral resolution from all lines in catalog is computed. Each single spectral resolution is computed as the ratio between the arc lamp line wavelength and its FWHM. The values trended here are for the 300V grism with a slit width of 1.0" and the GG435 order separation filter.  


General information

Click on any of the plots to see a close-up version. 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