PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2006-03-17 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. Odyssey SCL-kernel contained in this directory ============================================== This volume contains the following Odyssey SCLK files (only name portion of the file name is shown; the extension of all file names is ".tsc"): orb1_sclkscet* Odyssey Spacecraft clock coefficients Kernel (SCLK) file generated by converting corresponding SCLKvSCET file produced by Spacecraft Team/LMA to SPICE SCLK format using MAKCLK SPICE Utility program. These files are created/delivered every time when LMA deliver new SCLKvSCET file (usually once every two-four weeks.) SCLK File Naming Schema ======================= The Odyssey SCLK files naming schema is as follows: orb1_sclkscet_vvvvv.tsc where vvvvv is the file version (example: ``00005'' for Version 5); 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 Odyssey 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