ExoMars 2016 IK files
===========================================================================

   This ``aareadme.txt'' file describes the contents of the kernels/ik
   directory of the ExoMars 2016 SPICE Kernel Dataset.

   It was last modified on April 05, 2021 by Ricardo Valles Blanco, ESAC/ESA.


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

   This directory contains the SPICE Instrument Kernel files for the
   ExoMars 2016 Trace Gas Orbiter (TGO) remote sensing instruments.


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

   The naming scheme for ExoMars2016 IKs is:

         em16_SC_INST_vNN.ti

   where

         SC       acronym of the spacecraft (required):

                     tgo: for the Trace Gas Orbiter (TGO) spacecraft;
                     edm: for the Schiaparelli (EDM) lander;

         INST     instrument identifier (required):

                     acs      for ACS
                     cassis   for CaSSIS
                     frend    for FREND
                     nomad    for NOMAD
                     str      for Star Trackers

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

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


Current IK Kernels Set
--------------------------------------------------------

   em16_edm_deca_vNN.ti

      SPICE IK file providing optics, detector, and field-of-view (FOV)
      parameters for the Schiaparelli Entry, Descent and Landing Demonstrator
      Module (EDM) Descent Camera (DECA). Created by the ESA SPICE Service
      (ESS).


   em16_tgo_acs_vNN.ti

      SPICE IK file providing optics, detector, and field-of-view (FOV)
      parameters for the TGO Atmospheric Chemistry Suite (ACS) spectroscopic
      instruments and sensors. Created by the ESA SPICE Service (ESS).


   em16_tgo_cassis_vNN.ti

      SPICE IK file providing optics, detector, and field-of-view (FOV)
      parameters for the TGO Colour and Stereo Surface Imaging System
      (CaSSIS). Created by the ESA SPICE Service (ESS).


   em16_tgo_frend_vNN.ti

      SPICE IK file providing optics, detector, and field-of-view (FOV)
      parameters for the TGO Fine Resolution Epithermal Neutron Detector
      FREND). Created by the ESA SPICE Service (ESS).


   em16_tgo_nomad_vNN.ti

      SPICE IK file providing optics, detector, and field-of-view (FOV)
      parameters for the TGO Nadir and Occultation for MArs Discovery (NOMAD).
      Created by the ESA SPICE Service (ESS).


   em16_tgo_str_vNN.ti

      SPICE IK file providing optics, detector, and field-of-view (FOV)
      parameters for the TGO Star Trackers (STR). Created by the ESA SPICE
      Service (ESS).


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

   aareadme.txt         This file.


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

   Nothing to report.


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

   The most detailed description of the data in an IK 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
--------------------------------------------------------

   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
           +1 (818) 354-8136
           Boris.Semenov@jpl.nasa.gov


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

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

   2. Header of GETFOV SPICE API, latest version


End of aareadme file.