PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2011-08-11 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 using the SPICE Toolkit APIs, calls to which can be integrated into user application programs. 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 ``sclk.req'' document provided with the toolkit to get more information about conversion between ET and spacecraft clock times. Stardust SCL-kernel contained in this directory =============================================== This data set 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 address: Navigation and Ancillary Information Facility (NAIF) Jet Propulsion Laboratory MS 301-125L 4800 Oak Grove Drive Pasadena CA 91109 USA