Cross-scan Analysis Pipeline
CAP is a collection of IDL-programming-language ((c)Exelis) procedures.
It requires IDL 8.x and the "IDL astrolib" libraries, downloadable from https://idlastro.gsfc.nasa.gov/homepage.html
Copy all the procedures in a folder inside your IDL workspace, in a folder under the "Default" path.
Full descriptions of all procedures are available in the wiki page: