KPL/SCLK LADEE SCLK File --- Nominal Clock =========================================================================== This file is a SPICE spacecraft clock (SCLK) kernel containing information required for converting LADEE spacecraft on-board clock times to other time systems (UTC, ET, etc) and vice versa. This SCLK kernel represents the nominal LADEE ob-board clock, which is planned to be syncronyzed with UTC seconds past J2000 TDB. Production/History of this SCLK file -------------------------------------------------------- This file was generated by the NAIF utility program MAKCLK from the LADEE SCLKvSCET file ladee_clkcor_2013015_v01.sclk_scet (see the comment sections ``SCLKvSCET Fiel Contents'' and ``MAKCLK Setup file'' below for the SCLKvSCET SFDU header and MAKCLK setup file). Usage -------------------------------------------------------- This file must be loaded into the user's SPICE-based application by a call to the SPICELIB FURNSH subroutine (furnsh_c in CSPICE, cspice_furnsh in ICY): CALL FURNSH ( 'frame_kernel_name' ) furnsh_c ( "frame_kernel_name" ); cspice_furnsh, "frame_kernel_name" in order to use the SPICELIB SCLK family of subroutines to convert LADEE spacecraft on-board clock to ET and vice versa. SCLK Format -------------------------------------------------------- The on-board clock, the conversion for which is provided by this SCLK file, consists of two fields: SSSSSSSSSS:FFFFF where: SSSSSSSSSS -- count of on-board seconds FFFFF -- count of fractions of a second with one fraction being 1/65536 of a second References -------------------------------------------------------- 1. SCLK Required Reading Document 2. MAKCLK User's Guide Document 3. SFOC SCLKvSCET SIS Document Inquiries -------------------------------------------------------- If you have any questions regarding this file contact LADEE Mission Operations Team, Goddard Space Flight Center, Greenbelt, MD; 310-614-6292 SCLKvSCET File Contents -------------------------------------------------------- CCSD3ZS00001$$sclk$$NJPL3KS0L015$$scet$$ MISSION-NAME=LADEE; SPACECRAFT-NAME=LADEE; DATA-SET-ID=SCLK-SCET; FILE-NAME=ladee_clkcor_2013015_v01.sclk_scet; PRODUCT-CREATION-TIME=2013-01-15T12:00:00; PRODUCT-VERSION-ID=UNK; PRODUCER-ID=NAIF; APPLICABLE-START-TIME=2013-201T00:00:00; APPLICABLE-STOP-TIME=2020-001T00:00:00; MISSION-ID=UNK; SPACECRAFT-ID=12; CCSD3RE00000$$scet$$NJPL3IS00613$$data$$ *____SCLK0_______ ____SCET0____________ _DUT__ _SCLKRATE___ 0000000000.000 2000-001T11:58:55.816 64.184 1.000000000 189345664.000 2005-365T23:59:59.816 64.184 2.000000000 189345665.000 2006-001T00:00:00.816 65.184 1.000000000 284040064.000 2008-366T23:59:59.816 65.184 2.000000000 284040065.000 2009-001T00:00:00.816 66.184 1.000000000 394372864.000 2012-182T23:59:59.816 67.184 2.000000000 394372865.000 2012-183T00:00:00.816 67.184 1.000000000 427618265.000 2013-201T18:50:00.816 67.184 1.000000000 CCSD3RE00000$$data$$CCSD3RE00000$$sclk$$ MAKCLK Setup file -------------------------------------------------------- SCLKSCET_FILE = ladee_clkcor_2013015_v01.sclk_scet OLD_SCLK_KERNEL = ladee_clkcor_2013015_v00.tsc FILE_NAME = ladee_clkcor_2013015_v01.tsc NAIF_SPACECRAFT_ID = -12 LEAPSECONDS_FILE = naif0010.tls PARTITION_TOLERANCE = 394 LOG_FILE = ladee_clkcor_2013015_v01.log Kernel DATA -------------------------------------------------------- \begindata SCLK_KERNEL_ID = ( @2013-10-22/15:29:58.37 ) SCLK_DATA_TYPE_12 = ( 1 ) SCLK01_TIME_SYSTEM_12 = ( 2 ) SCLK01_N_FIELDS_12 = ( 2 ) SCLK01_MODULI_12 = ( 4294967296 65536 ) SCLK01_OFFSETS_12 = ( 0 0 ) SCLK01_OUTPUT_DELIM_12 = ( 1 ) SCLK_PARTITION_START_12 = ( 0.0000000000000E+00 ) SCLK_PARTITION_END_12 = ( 2.8147497671065E+14 ) SCLK01_COEFFICIENTS_12 = ( 0.0000000000000E+00 -3.5763036976733E-10 1.0000000000000E+00 1.2408957435904E+13 1.8934566400000E+08 2.0000000000000E+00 1.2408957501440E+13 1.8934566600000E+08 1.0000000000000E+00 1.8614849634304E+13 2.8404006500000E+08 2.0000000000000E+00 1.8614849699840E+13 2.8404006700000E+08 1.0000000000000E+00 2.5845620015104E+13 3.9437286600000E+08 2.0000000000000E+00 2.5845620080640E+13 3.9437286800000E+08 1.0000000000000E+00 2.8024390615040E+13 4.2761826800000E+08 1.0000000000000E+00 ) \begintext End of SCLK file.