KPL/SCLK VEX SCLK File =========================================================================== This file is a SPICE spacecraft clock (SCLK) kernel containing information required for Venus Express spacecraft on-board clock to UTC conversion. Production/History of this SCLK file -------------------------------------------------------- This file was generated by the NAIF utility program MAKCLK from the most recent Venus Express Time Correlation Packet (TCP) data converted to SCLKvSCET format using TCP2SCET program. Usage -------------------------------------------------------- This file must be loaded into the users program by a call to the FURNSH subroutine CALL FURNSH( 'this_file_name' ) in order to use the SPICELIB SCLK family of subroutines to convert Venus Express 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:FFF where: SSSSSSSSSS -- count of on-board seconds FFF -- count of fractions of a second with one fraction being 1/65536 of a second References -------------------------------------------------------- 1. SCLK Required Reading Document 2. TCP2SCET Users Guide Document 3. MAKCLK Users Guide Document Inquiries -------------------------------------------------------- If you have any questions regarding this file contact VSOC/ESTEC Jorge Diaz del Rio (+31) 71 565-5175 jdiaz@rssd.esa.int Joe Zender (+31) 71 565-4919 Joe.Zender@esa.int or NAIF at JPL Charles H. Acton, Jr (818) 354-3869 Chuck.Acton@jpl.nasa.gov Boris V. Semenov (818) 354-8136 Boris.Semenov@jpl.nasa.gov SCLKvSCET File Header -------------------------------------------------------- MISSION-NAME = VENUS-EXPRESS; SPACECRAFT-NAME = VENUS-EXPRESS; DATA-SET-ID = SCLK-SCET; FILE-NAME = VEX-SCET.DAT; PRODUCT-CREATION-TIME = 2006-03-02T22:45:02; PRODUCT-VERSION-ID = N/A; PRODUCER-ID = VSOC/ESTEC; APPLICABLE-START-TIME = 2005-313T03:33:00.000; APPLICABLE-STOP-TIME = N/A; MISSION-ID = 248; SPACECRAFT-ID = 248; MAKCLK Setup file -------------------------------------------------------- SCLKSCET_FILE = VEX_SCET.DAT OLD_SCLK_KERNEL = VEX_060301_STEP.TSC.oldsclk FILE_NAME = VEX_060301_STEP.TSC NAIF_SPACECRAFT_ID = -248 LEAPSECONDS_FILE = /ftp/pub/projects/vex/data/spice/kernels/lsk/NAIF0008.TLS PARTITION_TOLERANCE = 6554 LOG_FILE = VEX_060301_STEP.TSC.makclklog Kernel DATA -------------------------------------------------------- \begindata SCLK_KERNEL_ID = ( @2006-03-02/22:45:02.00 ) SCLK_DATA_TYPE_248 = ( 1 ) SCLK01_TIME_SYSTEM_248 = ( 2 ) SCLK01_N_FIELDS_248 = ( 2 ) SCLK01_MODULI_248 = ( 4294967296 65536 ) SCLK01_OFFSETS_248 = ( 0 0 ) SCLK01_OUTPUT_DELIM_248 = ( 1 ) SCLK_PARTITION_START_248 = ( 1.4334022161090E+12 ) SCLK_PARTITION_END_248 = ( 2.8147497671065E+14 ) SCLK01_COEFFICIENTS_248 = ( 0.0000000000000E+00 1.8477924418400E+08 1.0000005951213E+00 2.1272972940000E+09 1.8481170418400E+08 9.9998016396769E-01 2.1312295320000E+09 1.8481176418400E+08 1.0000004995338E+00 9.4169166210000E+09 1.8492293500200E+08 1.0004819012250E+00 9.4208468870000E+09 1.8492299500200E+08 1.0000004340917E+00 2.5503976057000E+10 1.8516840418400E+08 9.9982760540861E-01 2.5507908895000E+10 1.8516846418400E+08 1.0000004273755E+00 3.2133390077000E+10 1.8526956104700E+08 9.9981667383275E-01 3.2137322958000E+10 1.8526962104700E+08 1.0000003316851E+00 5.4370533607000E+10 1.8560887303100E+08 9.9980014981136E-01 5.4374466553000E+10 1.8560893303100E+08 1.0000002762994E+00 7.7126078667000E+10 1.8595609517700E+08 9.9986726615577E-01 7.7130011349000E+10 1.8595615517700E+08 1.0000002400158E+00 1.0570343028600E+11 1.8639215105400E+08 9.9987362233726E-01 1.0570736294300E+11 1.8639221105400E+08 1.0000002122961E+00 1.3393511232700E+11 1.8682293241900E+08 9.9992879738788E-01 1.3393904476700E+11 1.8682299241900E+08 1.0000001958406E+00 2.0555593504000E+11 1.8791577965500E+08 9.9980548828162E-01 2.0555986796500E+11 1.8791583965500E+08 1.0000001780339E+00 2.7383772233800E+11 1.8895767721800E+08 9.9993210299899E-01 2.7384165476500E+11 1.8895773721800E+08 1.0000001764318E+00 2.9926096530000E+11 1.8934560518400E+08 9.9998674253936E-01 2.9926496304900E+11 1.8934566618400E+08 1.0000001719960E+00 3.7257629850400E+11 1.9046430858000E+08 1.0002274076595E+00 3.7258022977000E+11 1.9046436858000E+08 1.0000001994097E+00 4.1531769185100E+11 1.9111649062900E+08 9.9992447469864E-01 4.1532162430800E+11 1.9111655062900E+08 1.0000001933557E+00 4.3871106134200E+11 1.9147344518400E+08 1.0003235910054E+00 4.3871499223000E+11 1.9147350518400E+08 1.0000002331301E+00 4.4392272930200E+11 1.9155296896400E+08 9.9998830173190E-01 4.4392666150800E+11 1.9155302896400E+08 1.0000002253516E+00 4.6671231076400E+11 1.9190071045800E+08 9.9978083010977E-01 4.6671624378600E+11 1.9190077045800E+08 1.0000001694789E+00 6.3669279564800E+11 1.9449440724800E+08 9.9982989344312E-01 6.3669672847700E+11 1.9449446724800E+08 1.0000001601220E+00 ) \begintext