This task combines the images produced for individual observations into larger field mosaics. This includes the event and exposure images (output from mosspectra and pnspectra), QPB background images (output from mosback and pnback, both processed by rotdet2sky), the soft proton images (output from proton processed by rotdet2sky), and the solar wind charge exchange background (output from swcx, also processed by rotdet2sky), plus Swiss cheese maps from cheese and makemaskmerge. Pixel size, image size, coordinate system, and central coordinates are all user selected. This task was originally a subtask of the SAS esas task named merge_comp_xmm prior to SAS-21 and retains all of its functionality.
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