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jkrogager / PyNOT

ALFOSC pipeline
MIT License
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Background subtraction failure #22

Closed Shivangi1010 closed 4 months ago

Shivangi1010 commented 7 months ago

Hi, Please let me know why after wavelength calibration, the background subtraction is failing? I have checked the 

      - Plotting fitted arc line positions in 2D frame

[OUTPUT] - Saving figure: spectra/QSO1644+263/al-gr4_slit1.8/ob1/PixTable2D.pdf

Unexpected error: <class 'FileNotFoundError'> Traceback (most recent call last): File "/home/shivangi/anaconda3/bin/pynot", line 33, in sys.exit(load_entry_point('PyNOT-redux==1.3.3', 'console_scripts', 'pynot')()) File "/home/shivangi/anaconda3/lib/python3.8/site-packages/pynot/main.py", line 594, in main run_pipeline(options_fname=args.params, File "/home/shivangi/anaconda3/lib/python3.8/site-packages/pynot/redux.py", line 427, in run_pipeline bg_msg = auto_fit_background(rect2d_fname, bgsub2d_fname, dispaxis=1, File "/home/shivangi/anaconda3/lib/python3.8/site-packages/pynot/scired.py", line 280, in auto_fit_background data = fits.getdata(data_fname) File "/home/shivangi/anaconda3/lib/python3.8/site-packages/astropy/io/fits/convenience.py", line 221, in getdata hdulist, extidx = _getext(filename, mode, *args, kwargs) File "/home/shivangi/anaconda3/lib/python3.8/site-packages/astropy/io/fits/convenience.py", line 1125, in _getext hdulist = fitsopen(filename, mode=mode, kwargs) File "/home/shivangi/anaconda3/lib/python3.8/site-packages/astropy/io/fits/hdu/hdulist.py", line 214, in fitsopen return HDUList.fromfile( File "/home/shivangi/anaconda3/lib/python3.8/site-packages/astropy/io/fits/hdu/hdulist.py", line 482, in fromfile return cls._readfrom( File "/home/shivangi/anaconda3/lib/python3.8/site-packages/astropy/io/fits/hdu/hdulist.py", line 1170, in _readfrom fileobj = _File( File "/home/shivangi/anaconda3/lib/python3.8/site-packages/astropy/io/fits/file.py", line 218, in init self._open_filename(fileobj, mode, overwrite) File "/home/shivangi/anaconda3/lib/python3.8/site-packages/astropy/io/fits/file.py", line 636, in _open_filename self._file = open(self.name, IO_FITS_MODES[mode]) FileNotFoundError: [Errno 2] No such file or directory: 'spectra/QSO1644+263/al-gr4_slit1.8/ob1/RECT2D_QSO1644+263.fits'

jkrogager commented 6 months ago

This is because the wavelength solution wasn't calculated correctly.

You get the following error:

[ERROR] - Wavelength array is not monotonic.