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spacetelescope / hstaxe

hstaxe is the python and C follow on to the aXe package which was maintained in IRAF for many years.
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KeyError: Extension 'NAXIS1' not found when running axetasks.axeprep with ACS/WFC/G800L-F775W #11

Open bkornpob opened 4 years ago

bkornpob commented 4 years ago

This error happened when I ran pyaxe on ACS/WFC/G800L-F775W. Data were downloaded from MAST (before the pipeline update), PID = 15401, filters = ['G800L','F775W'], SUBARRAY = False. This is WR96, and the data were used in a recent ISR. Note that, the data set composes of both subarray and full images. Only full images were used in the run.

KeyError Traceback (most recent call last)

in 5 backims="ACS.WFC.CHIP2.msky.1.fits", 6 norm=False, ----> 7 mfwhm=3.0) ~/anaconda3/envs/pyaxe/lib/python3.7/site-packages/pyaxe/axesrc/axetasks.py in axeprep(inlist, configs, wavelength, backgr, backims, backped, mfwhm, norm, gcorr) 168 gcorr=gcorr) 169 --> 170 aXePrep.run() 171 del aXePrep 172 ~/anaconda3/envs/pyaxe/lib/python3.7/site-packages/pyaxe/axesrc/axepreptor.py in run(self) 546 # make a background PET if necessary 547 if 'backgr' in self.params and self.params['backgr']: --> 548 self._subtract_background(ext_info) 549 550 # make a background PET if necessary ~/anaconda3/envs/pyaxe/lib/python3.7/site-packages/pyaxe/axesrc/axepreptor.py in _subtract_background(self, ext_info) 390 else: 391 # make normal background subtraction --> 392 goodreturn = self._subtract_sky(ext_info) 393 394 if goodreturn: ~/anaconda3/envs/pyaxe/lib/python3.7/site-packages/pyaxe/axesrc/axepreptor.py in _subtract_sky(self, ext_info, flag) 180 "subtracted!".format(self.grisim)) 181 --> 182 npix = int(grism_file['NAXIS1']) * int(fits_head['NAXIS2']) 183 184 # Compute the ratio of the grism SCI image to the background image ~/anaconda3/envs/pyaxe/lib/python3.7/site-packages/astropy/io/fits/hdu/hdulist.py in __getitem__(self, key) 305 try: 306 return self._try_while_unread_hdus(super().__getitem__, --> 307 self._positive_index_of(key)) 308 except IndexError as e: 309 # Raise a more helpful IndexError if the file was not fully read. ~/anaconda3/envs/pyaxe/lib/python3.7/site-packages/astropy/io/fits/hdu/hdulist.py in _positive_index_of(self, key) 759 """ 760 --> 761 index = self.index_of(key) 762 763 if index >= 0: ~/anaconda3/envs/pyaxe/lib/python3.7/site-packages/astropy/io/fits/hdu/hdulist.py in index_of(self, key) 740 741 if (found is None): --> 742 raise KeyError(f'Extension {key!r} not found.') 743 else: 744 return found KeyError: "Extension 'NAXIS1' not found."