OSError: No SIMPLE card found, this file does not appear to be a valid FITS file

[MeArpanGhosh]

Hi, I am facing this problem while I am trying to replicate the quickstart eleanor tutuorial ( https://eleanor.readthedocs.io/en/latest/getting_started/tutorial.html )

In [28]: data = eleanor.TargetData(star, height=15, width=15, bkg_size=31, do_psf=False, do_pca=False)

OSError Traceback (most recent call last)

in ----> 1 data = eleanor.TargetData(star, height=15, width=15, bkg_size=31, do_psf=False, do_pca=False) ~/eleanor/eleanor/targetdata.py in __init__(self, source, height, width, save_postcard, do_pca, do_psf, bkg_size, aperture_mode, cal_cadences, try_load, regressors, language) 187 if source.tc == False: 188 self.post_obj = Postcard(source.postcard, source.postcard_bkg, --> 189 source.postcard_path) 190 else: 191 self.post_obj = Postcard_tesscut(source.cutout) ~/eleanor/eleanor/postcard.py in __init__(self, filename, background, filepath) 56 self.filename = os.path.join(filepath, filename) 57 self.local_path = copy.copy(self.filename) ---> 58 self.hdu = fits.open(self.local_path) 59 self.background2d = fits.open(os.path.join(filepath, background))[1].data 60 ~/anaconda3/envs/tess/lib/python3.7/site-packages/astropy/io/fits/hdu/hdulist.py in fitsopen(name, mode, memmap, save_backup, cache, lazy_load_hdus, ignore_missing_simple, **kwargs) 172 173 return HDUList.fromfile(name, mode, memmap, save_backup, cache, --> 174 lazy_load_hdus, ignore_missing_simple, **kwargs) 175 176 ~/anaconda3/envs/tess/lib/python3.7/site-packages/astropy/io/fits/hdu/hdulist.py in fromfile(cls, fileobj, mode, memmap, save_backup, cache, lazy_load_hdus, ignore_missing_simple, **kwargs) 409 save_backup=save_backup, cache=cache, 410 ignore_missing_simple=ignore_missing_simple, --> 411 lazy_load_hdus=lazy_load_hdus, **kwargs) 412 413 @classmethod ~/anaconda3/envs/tess/lib/python3.7/site-packages/astropy/io/fits/hdu/hdulist.py in _readfrom(cls, fileobj, data, mode, memmap, cache, lazy_load_hdus, ignore_missing_simple, **kwargs) 1088 if hdulist._file.close_on_error: 1089 hdulist._file.close() -> 1090 raise OSError('No SIMPLE card found, this file does not ' 1091 'appear to be a valid FITS file') 1092 OSError: No SIMPLE card found, this file does not appear to be a valid FITS file In [29]: data = eleanor.TargetData(star) --------------------------------------------------------------------------- OSError Traceback (most recent call last) in ----> 1 data = eleanor.TargetData(star) ~/eleanor/eleanor/targetdata.py in __init__(self, source, height, width, save_postcard, do_pca, do_psf, bkg_size, aperture_mode, cal_cadences, try_load, regressors, language) 187 if source.tc == False: 188 self.post_obj = Postcard(source.postcard, source.postcard_bkg, --> 189 source.postcard_path) 190 else: 191 self.post_obj = Postcard_tesscut(source.cutout) ~/eleanor/eleanor/postcard.py in __init__(self, filename, background, filepath) 56 self.filename = os.path.join(filepath, filename) 57 self.local_path = copy.copy(self.filename) ---> 58 self.hdu = fits.open(self.local_path) 59 self.background2d = fits.open(os.path.join(filepath, background))[1].data 60 ~/anaconda3/envs/tess/lib/python3.7/site-packages/astropy/io/fits/hdu/hdulist.py in fitsopen(name, mode, memmap, save_backup, cache, lazy_load_hdus, ignore_missing_simple, **kwargs) 172 173 return HDUList.fromfile(name, mode, memmap, save_backup, cache, --> 174 lazy_load_hdus, ignore_missing_simple, **kwargs) 175 176 ~/anaconda3/envs/tess/lib/python3.7/site-packages/astropy/io/fits/hdu/hdulist.py in fromfile(cls, fileobj, mode, memmap, save_backup, cache, lazy_load_hdus, ignore_missing_simple, **kwargs) 409 save_backup=save_backup, cache=cache, 410 ignore_missing_simple=ignore_missing_simple, --> 411 lazy_load_hdus=lazy_load_hdus, **kwargs) 412 413 @classmethod ~/anaconda3/envs/tess/lib/python3.7/site-packages/astropy/io/fits/hdu/hdulist.py in _readfrom(cls, fileobj, data, mode, memmap, cache, lazy_load_hdus, ignore_missing_simple, **kwargs) 1088 if hdulist._file.close_on_error: 1089 hdulist._file.close() -> 1090 raise OSError('No SIMPLE card found, this file does not ' 1091 'appear to be a valid FITS file') 1092 OSError: No SIMPLE card found, this file does not appear to be a valid FITS file Please help me