This directory contains is a stand-alone Java-based tool, jsongen, useful 
   in preparing or editing the various catalog files needed to run 
   SPICE-enhanced Cosmographia. Both a GUI and a command-line version are 
   included, but users are recommended to stick with the GUI version. 

   This tool was built as a summer project by a high-school student. The 
   time available was not sufficient to make it as robust as NAIF would 
   like, but it does work. 

   Alternatively users could carefully use any text editor to prepare or 
   revise a catalog files needed to introduce additional data and 
   objects into the SPICE-enhanced Cosmographia "world".