This directory contains core SPICE kernels loaded into the
   SPICE-Enhanced Cosmographia 4.2 at start-up, and JSON files
   that load these kernels.

   Two sets are provided. 

   The first set is already included in the SPICE-enhanced Cosmographia
   packages. It consists of the following kernels and the corresponding
   JSON file providing data for the 1950-2050 time range:

      spice_kernels.json.1950_2050

      spice/lsk/naif0012.tls
      spice/pck/dawn_ceres_v06.tpc
      spice/pck/dawn_vesta_v06.tpc
      spice/pck/pck00010.tpc
      spice/spk/cg_1950_2050_v03.bsp

   The second set consists of the following kernels and the
   corresponding JSON file providing data for the 1900-2100 time range:

      spice_kernels.json.1900_2100

      spice/lsk/naif0012.tls
      spice/pck/dawn_ceres_v06.tpc
      spice/pck/dawn_vesta_v06.tpc
      spice/pck/pck00010.tpc
      spice/spk/cg_1900_2100_v03.bsp

   To make of use of the second set instead of the first set, download
   spice_kernels.json.1900_2100 and replace spice_kernels.json included
   within the Cosmographia package with it, and download SPK
   cg_1900_2100_v01.bsp to the spice/spk directory in the Cosmographia
   package tree.