ExoMars2016 DSK Files
=============================================================================

   This "aareadme.txt" file describes the contents of the kernels/dsk
   directory of the ExoMars2016 SPICE Kernel Dataset. It also provides
   the file naming conventions used for the ExoMars2016 DSK kernels.

   It was last modified on April 27, 2021 by Ricardo Valles Blanco, ESAC/ESA.


Brief Summary
--------------------------------------------------------

   This directory contains the SPICE Digital Shape-Kernel files for
   ExoMars2016 target bodies and spacecraft components.


File naming conventions
--------------------------------------------------------

   The naming scheme for the ExoMars2016 S/C DSKs is:

      em16_SC_BODY_vNN.bds

   where

        SC              spacecraft:

                           tgo for TGO
                           edm for Schiaparelli

        BODY            body:

                           bus for S/C Bus
                           hga for High Gain Antenna
                           samz for -Z Solar Array
                           sapz for +Z Solar Array

        NN              version number (required; e.g. 01)


   The naming scheme for the Natural Bodies DSKs is:

      BODY_RRRR_PRO[_ID][_DESC]_vNN.bds

   where

        BODY            body:

                           mars for Mars
                           phobos for Phobos
                           deimos for Deimos

        RRRR            number of plates:

                           Knnn for nnn thousand plates
                           Mnnn for nnn million plates

        PRO             producer:

                           esa for European Space Agency
                           dlr for Deutsches Zentrum fur Luft- und
                               Raumfahrt e.V.
                           gas for Gaskell, R.W.
                           tho for Thomas, P.
                           mol for Mars Global Surveyor MOLA data.


        NN              version number (required; e.g. 01)


Current DSK Kernels Set
--------------------------------------------------------

   em16_tgo_sc_bus_v01.bds

      Contains TGO S/C bus shape model. Created by the ESA SPICE Service (ESS).


   em16_tgo_sc_hga_v01.bds

      Contains TGO S/C high gain antenna shape model.
      Created by the ESA SPICE Service (ESS).


   em16_tgo_sc_samz_v01.bds

      Contains TGO S/C -Z solar array shape model.
      Created by the ESA SPICE Service (ESS).


   em16_tgo_sc_sapz_v01.bds

      Contains TGO S/C +Z solar array shape model.
      Created by the ESA SPICE Service (ESS).


   phobos_k137_dlr_v01.bds

      Contains Phobos shape data based on Mars-Express HRSC images.


   phobos_m001_gas_v01.bds

      Contains Phobos shape data by Robert Gaskell based on
      Viking Orbiter 1 VIS-A and VIS-B camera images.


   deimos_k002_tho_v01.bds

      Contains Deimos shape data by Peter Thomas based on
      Viking Orbiter images.


   mars_m129_mol_v01.bds

      Contains Mars shape data based on Mars Global Surveyor MOLA downsized
      to 1 pixel per degree data processed and generated by Nat Bachman.


Kernel File Details
--------------------------------------------------------

   The contents of any DSK file may be easily determined using the
   'dskbrief' utility program, Example:

      % dskbrief <dsk_file_name>

   Descriptive information about how/why/when an DSK file was created
   is usually available in the 'comment area' of the file. This may be
   viewed using the 'commnt' utility program available in all copies of
   the SPICE Toolkit. Use the '-r' option to read the comments. Example:

      % commnt -r <dsk_file_name>

   All binary DSK files (*.bds) contained in this directory are
   little-endian (LTL-IEEE) binary files.

   This DSK files have been produced by Nat Bachman NAIF/JPL
   (nathaniel.bachman@jpl.nasa.gov) and/or by
   Marc Costa (mcosta@sciops.esa.int).


Other directory contents
--------------------------------------------------------

     aareadme.txt                         This file.

     BODY_RRRR_PRO[_ID][_DESC]_vNN.obj    Each DSK has an ASCII vertex-facet
                                          format output file for visualization
                                          purposes (these files can be
                                          previewed natively in modern
                                          Operating Systems).

     BODY_RRRR_PRO[_ID][_DESC]_vNN.png    Each DSK has an image example in png
                                          format for convenience.


Particulars
--------------------------------------------------------

    Please note that in order to use DSK data you need to use
    N0066 or later Toolkits.


Contact Information
--------------------------------------------------------

   If you have any questions regarding this file contact the
   ESA SPICE Service (ESS) at ESAC:

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

   or SPICE support at IKI:

           Alexander Abbakumov
           +7 (495) 333-40-13
           aabbakumov@romance.iki.rssi.ru

   or NAIF at JPL:

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


References and required readings
--------------------------------------------------------

   1. ``DSK Required Reading'', NAIF Document

   5. ``ExoMars2016 SCLK file naming conventions,'' aareadme.txt file in
         kernels/sclk directory.


End of aareadme file.