PDS_VERSION_ID           = PDS3 
RECORD_TYPE              = STREAM 
 
OBJECT                      = TEXT
   INTERCHANGE_FORMAT       = ASCII
   PUBLICATION_DATE         = 1998-07-11 
   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). Leapseconds usually occur at the New Year or
   the end of June. The user should check with NAIF/JPL regularly to
   keep up to date about leapseconds.
   
   The information in LSK file can be manipulated by a collection of
   FORTRAN 77 subroutines to provide required time system transformation.
   These subroutines are part of the SPICELIB library and can be
   integrated into user application programs. The SPICE system toolkit
   for a number of computer platforms 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.


Mars Pathfinder LS-kernel contained in this dataset
===================================================

   The LSK file provided in this dataset is MPF project copy of
   generic SPICE LSK file distributed by NAIF/JPL. This leapseconds
   file reflects the June 30, 1997 leapsecond.


LS-kernel file naming schema
============================

   The LS-kernel file in this dataset is a SPICE text kernel format
   file, MPF_LSK.TLS, that conforms to the UNIX text end-of-line
   convention.
   
   The label for the LS-kernel file is stored separately in file named
   MPF_LSK.LBL.


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

   Regarding MPF project specific information provided in this data
   set and for general information about SPICE system:
   
      Charles H. Acton, Jr, 
      (818)-354-3869, 
      Chuck.Acton@jpl.nasa.gov, 
      
   or 
   
      Boris V. 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