M-Matisse FK files
===========================================================================

   This ``aareadme.txt'' file describes the contents of the kernels/fk
   directory of the M-Matisse SPICE Kernel Dataset.

   It was last modified on March 27, 2024 by Alfredo Escalante Lopez, ESAC/ESA.


Brief Summary
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   This directory contains the SPICE Frames Definition Kernel files for the
   M-Matisse spacecrafts, its structures, and science instruments, as well as
   for the Ground Earth Stations. Moreover, it contains frame definitions for
   science operations and for data analysis and scientific investigations.


File naming conventions
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   The following table provides information on which file contains which
   frames, their file naming conventions and some particular details:

      File                         Contents
     ---------------------------  -----------------------------------------
      earthfixediau.tf             Makes the IAU_EARTH coincide with
                                   the Earth fixed reference frame.

      estrack_vNN.tf               ESA Ground Stations topocentric frames.

      earth_topo_050714.tf         NASA DSN Ground Stations topocentric
                                   frames.

      rssd0002.tf                  Cross-mission frames kernel that defines
                                   frames of interest not ``built'' in the
                                   SPICE toolkit.

      mmatisse_vNN.tf              M-Matisse spacecraft, structures,
                                   instruments and sensors frames.

   where

           NN       version number -- two digits (required)

                    If multiple versions of a Frames Kernel file are
                    provided, always use the latest version (unless
                    earlier version is needed for some special reasons.)


 Current FK Kernels Set
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  earthfixediau.tf

      SPICE FK file that makes the IAU_EARTH frame coincide with the Earth
      fixed reference frame.


   estrack_vNN.tf

      SPICE FK file that provides topocentric frames for the ESA Ground
      Stations. Created by the ESA SPICE Service.


   earth_topo_050714.tf

      SPICE FK kernel for the topocentric reference frames for the Deep Space
      Network (DSN) stations. This kernel was released on the date indicated
      in the filename.


   rssd0002.tf

      SPICE FK file defining a number of cross-mission frames that could be
      used by any of the users of any of the ESA planetary missions and that
      are not ``built'' in the SPICE toolkit.


   mmatisse_vNN.tf

      SPICE FK file that provides M-Matisse spacecraft, structures,
      instruments and sensors frames. Created by the ESA SPICE Service.


Other directory contents
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    aareadme.txt         This file.


Kernel File Details
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   The most detailed description of the data in an FK file is provided in
   metadata included inside the descriptive text areas of the file. This
   information can be viewed using any text editor.


Contact Information
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     If you have any questions regarding this directory or its
     contents, please contact SPICE support at ESAC:

             Alfredo Escalante Lopez
             (+34) 91-8131-429
             spice@cosmos.esa.int

     or NAIF at JPL:

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


References and required readings
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   1. ``Frames Required Reading'', NAIF Document

   2. ``Kernel Pool Required Reading'', NAIF

   3. ``C-Kernel Required Reading'', NAIF


End of aareadme file.