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CFITSIO   
Description Subroutine interface library for reading and writing data files in FITS data format.
Version installed Fedora-26: v3.370 (comes with the OS).
Usage The libraries are: libcfitsio.a  (static) or libcfitsio.so  (shared object). They are located in /usr/local/lib64/.
These libraries contain both C and Fortran-wrapper routines.
Link with -lcfitsio.  You may also need to link with -lm.
Upgrade Notes See the Log of Changes made to CFITSIO.
Manuals and
Documentation
See the documentation links in the HEASARC CFITSIO website.
SIE contact Nicola Caon - - tel: 5383 - office: 1.124
Additional Info CFITSIO includes two useful tools to compress and decompress fits files, called fpack and funpack (see the FPACK website for details), a command to list a fits file header, listhead, plus two commands to copy an image (with optional on-the-fly compression), fitscopy and imcopy.
Run these commands with no argument for quick usage help.