diff options
Diffstat (limited to 'wcsutil')
| -rw-r--r-- | wcsutil/__init__.py | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/wcsutil/__init__.py b/wcsutil/__init__.py index 4e43529..bad0607 100644 --- a/wcsutil/__init__.py +++ b/wcsutil/__init__.py @@ -119,7 +119,7 @@ class HSTWCS(WCS): self.ra_targ = primhdr.get('RA_TARG', None) self.dec_targ = primhdr.get('DEC_TARG', None) self.det2imfile = primhdr.get('D2IMFILE', None) - self.det2imext = primhdr.get('D2IMEXT', None) + self.det2imext = ehdr.get('D2IMEXT', None) self.axiscorr = primhdr.get('AXISCORR', None) self.d2imerr = primhdr.get('D2IMERR', 0.0) try: @@ -346,7 +346,12 @@ class HSTWCS(WCS): """ Create a paper IV type lookup table from a reference file """ - d2im_data = pyfits.getdata(self.filename, ext=('D2IMARR', 1)) + if self.det2imext in [None, "", 'N/A']: + return None + try: + d2im_data = pyfits.getdata(self.filename, ext=('D2IMARR', 1)) + except KeyError: + return None d2im_data = np.array([d2im_data]) d2im_hdr = pyfits.getheader(self.filename, ext=('D2IMARR', 1)) |