PDS_VERSION_ID          = PDS3
RECORD_TYPE             = STREAM

OBJECT                  = TEXT
   INTERCHANGE_FORMAT   = ASCII
   PUBLICATION_DATE     = 2008-11-12
   NOTE                 = "Viking Orbiter PC-Kernel Information"
END_OBJECT              = TEXT

END


General Information About SPICE PC-Kernels
==========================================

   In the SPICE system, the PC-kernels contain planetary attitude and
   body shape information. The PCK kernel includes orientation and
   shape information pertaining to extended solar system bodies such as
   the Sun, the planets, the natural satellites of the planets, comets,
   and asteroids.

   The purpose of the PCK kernels and associated software is to provide
   SPICE users with a convenient mechanism for supplying planetary
   physical constants to application programs. SPICE's PCK software is
   able to read files conforming to the PCK format and return to a
   calling application program both the data contained in such files
   and a small number of commonly used numeric quantities derived from
   the kernel data. 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 ``pck.req'' document provided with the toolkit to get
   more information on how to access PC-kernel data.


PC-kernels Contained in This Data Set
=====================================

   This following PC-Kernel file are provided in this data set

      pck00006.tpc                 the generic SPICE PCK file based on
                                   the 1994 IAU constants.

      pck00008.tpc                 the generic SPICE PCK file based on
                                   the 2000 IAU constants.


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

   The most detailed description of the data in a text PCK file is
   provided in metadata included inside the description area of the
   file. This information can be viewed using any text editor program.

   The most detailed description of the data in a binary PCK file is
   provided in metadata included inside the comment area of the file.
   This information can be viewed using utility programs COMMNT and
   SPACIT included into the NAIF Toolkit.


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

   Regarding VO 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

   address:

      Navigation and Ancillary Information Facility (NAIF)
      Jet Propulsion Laboratory
      MS 301-125L
      4800 Oak Grove Drive
      Pasadena CA 91109 USA