PDS_VERSION_ID          = PDS3
RECORD_TYPE             = STREAM

OBJECT                  = TEXT
   INTERCHANGE_FORMAT   = ASCII
   PUBLICATION_DATE     = 2003-02-01
   NOTE                 = "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 by a collection of FORTRAN 77 subroutines to
   provide a transformation between Ephemeris and spacecraft on-board
   times. 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 or information regarding
   how it can be obtained is located in the SOFTWARE subdirectory of
   the main directory of this dataset.
   
   Refer to the SCLK.REQ document provided with the toolkit or available
   from the NAIF Node of PDS if SPICE toolkit is not included with
   this data set to get more information about conversion between ET
   and spacecraft clock times.


Stardust SCL-kernel contained in this directory 
===============================================

   This volume contains the following Stardust SCLK files (only name
   portion of the file name is shown on the right; the extension part 
   of all file names is ".tsc"):
   
      sdu_sclkscet_NNNNN   Stardust Spacecraft clock coefficients
                           Kernel (SCLK) file(s) generated by
                           converting corresponding SCLKvSCET file
                           produced by Spacecraft Team/LMA to SPICE
                           SCLK format using MAKCLK SPICE Utility
                           program. NNNNN token in the file name
                           specifies the version of the file.

   If multiple versions of an SCLK file are provided, always use the
   latest version (unless earlier version is needed for some special
   reasons.)


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 Stardust 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 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 

