PDS_VERSION_ID          = PDS3
RECORD_TYPE             = STREAM

OBJECT                  = TEXT
   INTERCHANGE_FORMAT   = ASCII
   PUBLICATION_DATE     = 2007-06-04 
   NOTE                 = "MRO SCL-Kernel Information"
END_OBJECT              = TEXT
                                                                     
END 


General Information About SPICE SCL-Kernels
===========================================

   In the SPICE system, Spacecraft Clock (or SCL) -kernel contains a
   set of information required to perform a mapping between Ephemeris
   time (ET) and spacecraft on-board time (SCLK).
   
   The spacecraft clock coefficient information contained in SCLK file
   can be manipulated 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 ``sclk.req'' document provided with the toolkit to get
   more information about conversion between ET and spacecraft clock
   times.


MRO SCL-kernels Contained in This Data Set
==========================================

   This data set contains the following MRO SCLK files (only name
   portion of the file name is shown; the extension of all SCLK file
   names is ``.tsc''):
   
      mro_sclkscet_VVVVV_65536  MRO Spacecraft clock coefficients
                                Kernel (SCLK) files providing
                                correlation data for the primary MRO
                                on-board clock tags in ``standard'' and
                                ``high precision'' format. These SCLK
                                files contains actual MRO on-board
                                clock to ET mapping coefficients
                                computed using time calibration packets
                                from the spacecraft engineering
                                telemetry.

   If this data set contains multiple SCLK files, the one with the latest 
   version (VVVVV) supersedes all previous versions.


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

   The most detailed description of the data in an SCLK 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 

