Last updated 08/29/21.

Welcome to the public area of the NAIF server.  This area is maintained 
by the Navigation and Ancillary Information Facility (NAIF) in the 
Navigation and Mission Design Section at the Jet Propulsion Laboratory.

SPICE TOOLKIT
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For the generic SPICE Toolkit please look under "toolkit". This area is 
broken down by language/platform.  Please select your language first, 
then platform. 

PDS ARCHIVED SPICE DATA
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SPICE kernels archived in PDS are under "pds". The PDS3 data sets are 
under "pds/data"; the PDS4 bundles are under "pds/pds4". 

OPS PROJECT SPICE DATA
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SPICE kernels for specific flight projects are under of the name of the 
project. Under each project, the files are organized by SPICE kernel type 
(ck, spk, sclk, etc.) under 'kernels' subdirectory.  

GENERIC KERNELS
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Multi-mission (generic) SPICE kernels are under "generic_kernels".
You can find leapseconds (LSK), planetary and setellite ephemerides (SPK), 
and planetary constants (PCK) files there.

MORE INFORMATION
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For more information about NAIF, SPICE Toolkit and SPICE data files, please
contact NAIF, Jet Propulsion Laboratory, MS 301-125L, 4800 Oak Grove 
Dr., Pasadena, CA 91109

Boris Semenov    Boris.V.Semenov@jpl.nasa.gov   (818) 354-8136