PDS_VERSION_ID          = PDS3
RECORD_TYPE             = STREAM

OBJECT                  = TEXT
   INTERCHANGE_FORMAT   = ASCII
   PUBLICATION_DATE     = 2005-10-29 
   NOTE                 = "LS-Kernel Information"
END_OBJECT              = TEXT
                                                                     
END 


General information about SPICE LS-kernels
==========================================

   In the SPICE system, the Leapsecond (or LS) -kernel contains a
   tabulation of the leapseconds and other data required to perform a
   transformation between Universal Time Coordinated (UTC) and
   Ephemeris time (ET). Leapseconds may occur at the New Year or the
   end of June.
   
   The information in LSK file can be manipulated by a collection of
   subroutines to provide required time system transformation. These
   subroutines are part of the SPICE library, the principal component
   of the SPICE Toolkit, and can be integrated into a user's
   application program. Information regarding how the Toolkit can be
   obtained is located in the SOFTWARE subdirectory of the main
   directory of this dataset.
   
   Refer to the TIME.REQ document provided with the Toolkit to get more
   information about time conversions supported within the SPICE
   system.


MER LS-kernel contained in this directory 
==============================================
 
   The following text LSK files are provided on this volume:
   
      naif*.tls

   These files are generic SPICE LSK files distributed by NAIF/JPL. The
   file with the latest version 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 MER project specific information provided in this
   data set and 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

   or 
   
      Lee Elson
      (818)-354-4223 
      Lee.Elson@jpl.nasa.gov
      
   address:
   
      Navigation and Ancillary Information Facility (NAIF)
      Jet Propulsion Laboratory
      MS 301-125L
      4800 Oak Grove Drive
      Pasadena CA 91109 USA 

