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  1. Data Management
  2. DM-6911

Ingesting tile compressed FITS files

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      When I try to read in FITS tile compressed calexps (created with either cfitsio's fpack or astropy.io.fits), the files appear to be read correctly, but something from the headers appears to be mangled. I have not tracked down the problem in detail, but running jointcal on a butler repo containing the tile compressed calexps results in bad fits, while running it on the uncompressed files works fine.

      The problem likely lies in how we are extracting header information that may be modified as part of the tile compression process (compressed HDUs are actually binary tables, not images).

      This ticket came out of a discussion on community.

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                • Assignee:
                  Unassigned
                  Reporter:
                  Parejkoj John Parejko
                  Watchers:
                  Dominique Boutigny, Jim Bosch, John Parejko, Kian-Tat Lim, Paul Price, Robert Lupton
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