PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2005-10-29 NOTE = "LS-Kernel Information" END_OBJECT = TEXT END General information about SPICE LS-kernels ========================================== In the SPICE system, the Leapsecond (or LS) -kernel contains a tabulation of the leapseconds and other data required to perform a transformation between Universal Time Coordinated (UTC) and Ephemeris time (ET). Leapseconds may occur at the New Year or the end of June. The information in LSK file can be manipulated by a collection of subroutines to provide required time system transformation. These subroutines are part of the SPICE library, the principal component of the SPICE Toolkit, and can be integrated into a user's application program. Information regarding how the Toolkit can be obtained is located in the SOFTWARE subdirectory of the main directory of this dataset. Refer to the TIME.REQ document provided with the Toolkit to get more information about time conversions supported within the SPICE system. MER LS-kernel contained in this directory ============================================== The following text LSK files are provided on this volume: naif*.tls These files are generic SPICE LSK files distributed by NAIF/JPL. The file with the latest version supersedes all previous versions. Kernel file details =================== The most detailed description of the data in an LSK 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 MER project specific information provided in this data set and for general information about SPICE system: Charles H. Acton, Jr, (818)-354-3869, Charles.Acton@jpl.nasa.gov, or Boris Semenov (818)-354-8136 Boris.Semenov@jpl.nasa.gov or Lee Elson (818)-354-4223 Lee.Elson@jpl.nasa.gov address: Navigation and Ancillary Information Facility (NAIF) Jet Propulsion Laboratory MS 301-125L 4800 Oak Grove Drive Pasadena CA 91109 USA