Deep Impact/EPOXI PCK files.
===========================================================================
 
   This ``aareadme.txt'' file describes contents of the kernels/pck
   directory of the Deep Impact/EPOXI SPICE data server. It was last
   modified on January 24, 2023. Contact Boris Semenov (818-354-8136,
   Boris.Semenov@jpl.nasa.gov) if you have any questions regarding this
   data.
 

Deep Impact/EPOXI PC-kernels Provided in This Directory
=======================================================

   This directory contains PCK files used by Deep Impact/EPOXI
   projects. All files are in IEEE text format and must be copied using
   ftp ASCII transfer to any non-UNIX workstation. 

   The following files are present in this directory. (Only file names
   are shown; the file name extensions of the text PCK kernel files are
   always ".tpc"):

      pck00008                    Generic SPICE PCK file providing
                                  IAU/IAG/COSPAR values accepted in 1994;

      di_tempel1_iau2015_v01      PCK file containing comet 9P/Tempel 1
                                  rotation constants from the IAU 2015
                                  report, and shape/size data from 
                                  di_tempel1_v02.tpc

      di_tempel1_v02              PCK file containing comet 9P/Tempel 1
                                  shape/size and rotation constants
                                  derived by Peter Thomas as the result
                                  post-mission analysis of DI data in 2006   
      
      di_tempel1_v01              an earlier, superseded version of 
                                  di_tempel1_v02.tpc

      di_hartley_2_shapeset_v02   PCK file containing comet 103P/Hartley 2
                                  rotation constants from the shape archive 
                                  DIF-C-HRIV/MRI-5-HARTLEY2-SHAPE-V1.0, 
                                  and shape/size data from the IAU 2015 
                                  report, for a body-fixed frame with 
                                  +Z along the longest dimension

      di_hartley_2_iau2015_v01    PCK file containing comet 103P/Hartley 2
                                  shape/size and rotation constants from 
                                  the IAU 2015 report, for a body-fixed 
                                  frame with +Z along the longest dimension

      di_hartley_2_v02            PCK file containing comet 103P/Hartley 2
                                  shape/size and rotation constants
                                  derived shortly after encounter, for 
                                  a body-fixed frame with +X along the 
                                  longest dimension

      di_hartley_2_v01            an earlier, superseded version of 
                                  di_hartley_2_v02.tpc 


Kernel file details
===================

   The most detailed description of the data in a text PCK file is 
   provided in metadata included inside the description area of 
   the file. This information can be viewed using any text editor
   program.
   
   The most detailed description of the data in a binary PCK 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.