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The "World Coordinate System" (WCS) standard defines keywords and usage that provide for the description of astronomical coordinate systems in a FITS image header.

WCSLIB is implemented in C, with support for FORTRAN via a set of wrapper functions. More information is available on the WCSLIB web site.


First you need to decide on the version of the software you want to use. Use

module avail wcslib

to check what versions are available. We normally recommend using the latest version available. For example, to load the 4.18 version of WCSLIB use

module load wcslib/4.18

For more details on using modules see our modules help guide.