PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2008-02-28 NOTE = "SCL-Kernel Information" END_OBJECT = TEXT END General information about SPICE SCL-kernels =========================================== In the SPICE system, the Spacecraft Clock Kernel (SCLK) contains information required to perform a mapping between Ephemeris time (ET) and spacecraft on-board time (SCLK). The spacecraft clock coefficient information contained in a SCLK file can be manipulated by a collection subroutines that are part of the SPICELIB library, the major component of the NAIF Toolkit. These subroutines can be integrated into user application programs. Information about obtaining the SPICE Toolkit is located in the "software" subdirectory of the main directory of this dataset. Refer to the SCLK Required Reading (sclk.req) document provided with the Toolkit or available from the NAIF Node of the PDS, to get more information on how to convert between ET and spacecraft clock times. New Horizons SCL-kernels Contained in This Directory =================================================== This volume contains the following New Horizons Flyby SCLK files new_horizons_VVV.tsc New Horizons SCLK kernel file, where VVV is the version number. This is the official SCLK file used by the ground system during mission operations. Note that later versions of the SCLK file completely supercede earlier versions. Kernel File Details =================== The most detailed description of the data in an SCLK file is provided in metadata included inside the descriptive text areas within the file. This information can be viewed using any text editor.