PDS_VERSION_ID          = PDS3
RECORD_TYPE             = STREAM

OBJECT                  = TEXT
   INTERCHANGE_FORMAT   = ASCII
   PUBLICATION_DATE     = 2010-03-15
   NOTE                 = "LS-Kernel Information"
END_OBJECT              = TEXT

END


General Information About SPICE LS-Kernels
==========================================

   In the SPICE system, Leapsecond (or LS) -kernel contains the
   leapseconds and the values of physical constants required to perform
   a transformation between Universal Time Coordinated (UTC) and
   Ephemeris time (ET).

   The information in an LSK file can be 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 ``time.req'' document provided with the toolkit to get
   more information about time conversions supported within the SPICE
   system.


MESSENGER LS-kernels Contained in This Data Set
===============================================

   The following generic LSK files are provided in this data set:

           naif[VER].tls

   If this data set contains multiple LSK files, the one with the latest
   version ([VER]) supersedes all previous versions.


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

   The most detailed description of the data in an LSK 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 MESSENGER project specific information provided in this
   data set:

      Mike Reid
      (240)-228-4537
      Mike.Reid@jhuapl.edu

   address:

      The Johns Hopkins University Applied Physics Laboratory
      11100 Johns Hopkins Road
      Laurel, MD 20723

   For general information about SPICE system:

      Charles H. Acton, Jr,
      (818)-354-3869,
      Charles.Acton@jpl.nasa.gov,

   or

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

   address:

      Navigation and Ancillary Information Facility (NAIF)
      Jet Propulsion Laboratory
      MS 301-121
      4800 Oak Grove Drive
      Pasadena CA 91109 USA