PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2011-08-11 NOTE = "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. Stardust PC-kernel contained in this Data Set ============================================= This directory contains PCK files used by Stardust project. All files are in IEEE text format and must be copied using ftp ASCII transfer to any non-UNIX workstation. The following files are present in this directory. (Only file names are shown; the file name extensions of the text PCK kernel files are always ".tpc"): pck00007 Generic SPICE PCK file providing IAU/IAG/COSPAR values accepted in 1994; pck00009 Generic SPICE PCK file providing IAU/IAG/COSPAR values accepted in 2006; sdu_annefrank_v01 PCK file containing asteroid Annefrank size and shape data. It does not contain rotation constants because orientation of the asteroid was not determined from the flyby data; sdu_wild2_v01 PCK file containing comet Wild 2 size, shape, and orientation determined from encounter data. sdu_tempel1_v01 PCK file containing comet Tempel 1 size, shape, and orientation determined from encounter data. 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 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 address: Navigation and Ancillary Information Facility (NAIF) Jet Propulsion Laboratory MS 301-125L 4800 Oak Grove Drive Pasadena CA 91109 USA