x_imagesa.e.RH is a redhat executable built from the V2.12.3 development system under RedHat 7.3. It is available to fix a problem with CCSETWCS when setting image headers with TNX solutions from CCMAP and MSCTPEAK. 1. Install x_imagesa.e.RH as $iraf/bin.redhat/x_images.e. Back up the previous version and make sure the new file is executable. This version should be compatible with the latest release of IRAF (V2.12.2). Older versions may not be compatible. Compatibility means the tasks included in the executable have the same parameters. An alternative patch is: 1. Install x_images.e.RH as $iraf/bin.redhat/x_imagesa.e. Make sure the new file is executable. 2. Install imcoordsa.cl as $iraf/pkg/images/imcoords/imcoords.cl. Back up the old version first. In this case only CCSETWCS will be run from the new executable.