PDS_VERSION_ID          = PDS3
RECORD_TYPE             = STREAM

OBJECT                  = TEXT
   INTERCHANGE_FORMAT   = ASCII
   PUBLICATION_DATE     = 2009-02-27 
   NOTE                 = "MRO I-Kernel Information"
END_OBJECT              = TEXT
                                                                     
END 


General Information About SPICE I-Kernels
=========================================

   In the SPICE system, I-kernels contain field-of-view specifications,
   internal timing parameters, detector geometry specifications and
   other geometric parameters for the instrument. These parameters
   along with knowledge of the spacecraft pointing (C kernel) and
   instrument mounting alignment (Frames Kernel) allow the user to use
   SPICE APIs to calculate the view directions of the individual
   instrument pixels or detectors.

   The data contained in I-kernel files can be accessed and manipulated
   in conjunction with other data 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.
 
   Refer to the ``kernel.req'' document provided with the Toolkit to get
   more information on how to access I-kernel data.


MRO I-kernels Provided in This Data Set
=======================================

   The following MRO I-Kernel files are provided in this data set (only
   name portion of the file name is shown; the extension of all IK file
   names is ``.ti''):
   
      mro_crism_vVV     IK file(s) for Compact Reconnaissance Imaging
                        Spectrometer for Mars (CRISM) providing FOV
                        definition and other geometric parameters for
                        the instrument

      mro_ctx_vVV       IK file(s) for Context Camera (CTX) providing FOV
                        definition and other geometric parameters for
                        the instrument

      mro_hirise_vVV    IK file(s) for High Resolution Imaging Science
                        Experiment (HIRISE) providing FOV definition
                        and other geometric parameters for the
                        instrument.

      mro_marci_vVV     IK file(s) for Mars Color Imager (MARCI) providing
                        FOV definition and other geometric parameters
                        for the instrument

      mro_mcs_vVV       IK file(s) for Mars Climate Sounder providing FOV
                        definition and other geometric parameters for
                        the instrument

      mro_onc_vVV       IK file(s) for Optical Navigation (Camera)
                        Experiment (ONC) providing FOV definition and
                        other geometric parameters for the instrument

   If this data set contains multiple IK files for a particular
   instrument, the one with the latest version (VV) supersedes all
   previous versions.

   For HIRISE a particular IK version must be used with a particular FK
   version to ensure consistency between the optical distortion data
   provided in the IK and camera frame alignment data provided in the
   FK. The IKs version 1.0 or earlier must be used with the MRO FK
   version 1.3 or earlier while the IKs version 1.1 or later must be
   used with the MRO FK version 1.4 or later.


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

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

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

   Regarding MRO 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