Help for using the SPICE-enhanced Cosmographia tool is provided via the Cosmographia User's Guide and several on-screen menus. The User's Guide discusses not only running the Cosmographia application, but also how to construct JSON-format "catalog files" used to provide the needed data, and the Python-based scripting interface to the program.
A more extensive discussion on constructing JSON catalog files is available in the Cosmographia-SPICE User's Guide , a downloadable PDF document. This includes complete examples of working JSON files.
NAIF has quite limited resources for providing personal help—we ask that you make every effort to use the above mentioned resources. If you need help beyond what is provided in these documents you may contact one of the NAIF Team members.