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| en:praktikum:sternspektren_baches [2023/11/30 17:54] – Immer noch, vermuteter Tippfehler jmkubat | en:praktikum:sternspektren_baches [2024/03/20 09:29] (current) – [Plotting the spectrum] rhainich |
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| Flatdarks/ | Flatdarks/ |
| ... | ... |
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| | <color #ed1c24>**Note:**</color> **This folder structure is essential for some data reduction steps. It is therefore essential that the files are sorted accordingly!** |
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| There are different tools to view the FITS files (two dimensional CCD images or data tables). //ds9// is easy to handle and can be started from the terminal via: | There are different tools to view the FITS files (two dimensional CCD images or data tables). //ds9// is easy to handle and can be started from the terminal via: |
| If you want to mirror the recordings you have to set ''flip_images'' to ''True''. If the images should also be binned, set ''bin_images'' to ''True''. The binning factor can be determined via the variable ''binning_value''. | If you want to mirror the recordings you have to set ''flip_images'' to ''True''. If the images should also be binned, set ''bin_images'' to ''True''. The binning factor can be determined via the variable ''binning_value''. |
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| | **Important:** When the data reduction is finished, disable the virtual environment with |
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| | deactivate |
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| ===== Data analysis ===== | ===== Data analysis ===== |
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| {{section>deng:praktikum:a12:python#English&noheader}} | {{section>deng:praktikum:a12:python#English&noheader}} |
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| | **Important:** Make sure that the virtual environment we used for data reduction is disabled before proceeding: |
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| | deactivate |
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| The spectrum should be plotted by means of the python script ''3_printmasterplot.py'', which can be found in the following directory ''~/scripts/n1_baches/''. This script can extract both the total spectrum created by //MIDAS// and the individual spectra of the various orders from the FITS files and then display them. | The spectrum should be plotted by means of the python script ''3_printmasterplot.py'', which can be found in the following directory ''~/scripts/n1_baches/''. This script can extract both the total spectrum created by //MIDAS// and the individual spectra of the various orders from the FITS files and then display them. |