[AstroPy] Astropy reproject to align two HST images

SHALMALEE KAPSE shalmalee.kapse at students.mq.edu.au
Thu Jan 16 01:58:10 EST 2020


I am trying to align two images I downloaded from MAST HST portal. For
this, I am using astropy-reproject package. However, I am running into an
error, every time I use reproject, despite providing the WCS information.
Following is the error:

ValueError: an astropy.io.fits.HDUList is required for Lookup table distortion.

I am using reproject version 0.6, and astropy both versions (3.2.3 and 4.0).

Information about the images: One image is from HST/WFC3 and second
one is from HST/ACS.   I am attaching the two images along with my
reproject code (.ipynb). Please let me know how to proceed and solve
this issue. Thanks in advance.


Thanks and regards,
Shalmalee Kapse,
PhD Candidate,
Department of Physics and Astronomy,
Macquarie University,NSW - 2109, Australia.
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