PDS_VERSION_ID          = PDS3
RECORD_TYPE             = STREAM

OBJECT                  = TEXT
   INTERCHANGE_FORMAT   = ASCII
   PUBLICATION_DATE     = 2017-06-20
   NOTE                 = "JUNO SP-Kernel Information"
END_OBJECT              = TEXT
                                                                     
END

General Information About SPICE SP-Kernels
==========================================

   The purpose of the SP-kernel -- which stands for S(pacecraft) and
   P(lanet) Kernel -- is to allow ephemerides for any collection of
   solar system bodies, spacecraft or any other objects in 3D space to
   be combined under a common file format, and accessed by a common set
   of subroutines.
 
   The SPK files can be accessed and manipulated using the SPICE
   Toolkit APIs, calls to which can be integrated into user application
   programs. The information regarding how to obtain the SPICE system
   toolkit for a number of languages and computer platforms is located
   in the ``/software'' subdirectory of the main directory of this data
   set.
 
   To use SP-kernels, a Leapseconds (LSK) is required. Also, to use
   SP-Kernels containing positions given relative to the non-inertial
   and project-defined frames, a Frame Definitions (FK) and Planetary
   Constants (PCK) files are required.
 
   Refer to the ``spk.req'' document provided with the toolkit to get
   more information on how to access SP-kernel data.


JUNO SP-kernels Provided in This Data Set
=========================================

   The following JUNO SP-kernels are provided in this data set (only
   the name portion of the file name is shown; the extension of all
   file names is ``.bsp''):

   JUNO Spacecraft Trajectory SPK files:

      juno_rec_BEG_END_DEL     SPK files covering the reconstructed
                               JUNO trajectory from BEG to END, created
                               on DEL. All three dates are specified in
                               the YYMMDD format. Note that in the
                               original SPK names the first token was
                               ``spk_'' rather than ``juno_''; this was
                               changed for the archive to make the
                               names more directly related to the
                               mission.

   JUNO Spacecraft Structures Fixed Offset SPK files:
   
      juno_struct_vVV          SPK files providing relative locations
                               of various JUNO structures and science
                               and engineering instruments. The file
                               with the latest version number VV
                               supersedes all previous versions.
           
   Solar System Bodies Ephemeris data SPK file:
   
      de436s                   SPK file containing JPL's Planetary
                               Ephemerides DE436.
 
      jup310                   SPK file containing JPL's Jovian
                               Satellite Ephemerides JUP310.


Kernel File Details
===================

   The most detailed description of the data in each SPK file is
   provided in metadata included inside the comment area of the file.
   This information can be viewed using utility programs COMMNT and
   SPACIT included into the NAIF Toolkit.
   

Contact Information
===================

   Regarding JUNO project specific information provided in this data
   set and for general information about SPICE system:
   
      Boris Semenov 
      (818)-354-8136 
      Boris.Semenov@jpl.nasa.gov

   address:
   
      Navigation and Ancillary Information Facility (NAIF)
      Jet Propulsion Laboratory
      MS 301-125L
      4800 Oak Grove Drive
      Pasadena CA 91109 USA