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 = 2008-01-29T16:45:01; 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_080128_STEP.TSC.oldsclk FILE_NAME = VEX_080128_STEP.TSC NAIF_SPACECRAFT_ID = -248 LEAPSECONDS_FILE = /var/ftp/pub/data/SPICE/VEX/kernels/lsk/NAIF0008.TLS PARTITION_TOLERANCE = 6554 LOG_FILE = VEX_080128_STEP.TSC.makclklog Kernel DATA -------------------------------------------------------- \begindata SCLK_KERNEL_ID = ( @2008-01-29/16:45:01.00 ) 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 1.0000001601223E+00 8.6088240181200E+11 1.9791526969600E+08 1.0002897466078E+00 8.6088633283300E+11 1.9791532969600E+08 1.0000002162864E+00 8.9494361997900E+11 1.9843500276900E+08 9.9976303630833E-01 8.9494755307100E+11 1.9843506276900E+08 1.0000001441664E+00 9.4831975608500E+11 1.9924945807400E+08 1.0002047640063E+00 9.4832368744000E+11 1.9924951807400E+08 1.0000001550315E+00 9.9932237096400E+11 2.0002769634900E+08 1.0001854286645E+00 9.9932630239500E+11 2.0002775634900E+08 1.0000001692170E+00 1.0432789555030E+12 2.0069842072500E+08 1.0000551889994E+00 1.0432828874460E+12 2.0069848072500E+08 1.0000001439433E+00 1.0612001652540E+12 2.0097187672700E+08 1.0001767788852E+00 1.0612040967190E+12 2.0097193672700E+08 1.0000001702160E+00 1.1685195293240E+12 2.0260944055500E+08 9.9979252352417E-01 1.1685234623000E+12 2.0260950055500E+08 1.0000001471958E+00 1.2818564645040E+12 2.0433882518400E+08 1.0002024742558E+00 1.2818603958680E+12 2.0433888518400E+08 1.0000001606505E+00 1.3840559767950E+12 2.0589826624700E+08 1.0001943330054E+00 1.3840599081910E+12 2.0589832624700E+08 1.0000001813524E+00 1.4689792476420E+12 2.0719409277000E+08 9.9983116457792E-01 1.4689831804660E+12 2.0719415277000E+08 1.0000001785004E+00 1.6442822916590E+12 2.0986900540800E+08 9.9714612769544E-01 1.6442862350730E+12 2.0986906540800E+08 1.0000001549867E+00 1.7355728967740E+12 2.1126198953900E+08 9.9981540273479E-01 1.7355768296600E+12 2.1126204953900E+08 1.0000001442525E+00 1.8016604156780E+12 2.1227040518400E+08 9.9969974634795E-01 1.8016643490190E+12 2.1227046518400E+08 9.9999979471158E-01 1.8248621895040E+12 2.1262443606600E+08 1.0015078039040E+00 1.8248661157440E+12 2.1262449606600E+08 1.0000001970494E+00 1.8926172862370E+12 2.1365829708900E+08 9.9273379734765E-01 1.8926212471780E+12 2.1365835708900E+08 1.0000001462062E+00 2.0923728550470E+12 2.1670632518400E+08 9.9944895290886E-01 2.0923767893750E+12 2.1670638518400E+08 1.0000001273135E+00 2.2102904562830E+12 2.1850560518400E+08 1.0000755367112E+00 2.2102943881460E+12 2.1850566518400E+08 1.0000001269938E+00 2.4836148628760E+12 2.2267620518400E+08 1.0000956308892E+00 2.4836187946600E+12 2.2267626518400E+08 1.0000001276531E+00 3.4946561819310E+12 2.3810347338000E+08 1.0001493041081E+00 3.4946601135040E+12 2.3810353338000E+08 1.0000001340711E+00 3.7170939734290E+12 2.4149760518400E+08 9.9993718859721E-01 3.7170979058360E+12 2.4149766518400E+08 1.0000001386662E+00 3.7624514329870E+12 2.4218970518400E+08 9.9991354100445E-01 3.7624553654870E+12 2.4218976518400E+08 1.0000001314202E+00 3.9150270855960E+12 2.4451782518400E+08 9.9992930594201E-01 3.9150310180340E+12 2.4451788518400E+08 1.0000001286048E+00 4.1135539544230E+12 2.4754710518400E+08 1.0001215764652E+00 4.1135578861050E+12 2.4754716518400E+08 1.0000001260168E+00 4.1245769222240E+12 2.4771530235300E+08 1.0000231430323E+00 4.1245808542930E+12 2.4771536235300E+08 1.0000001330524E+00 4.3116733355160E+12 2.5057016743900E+08 1.0000709584039E+00 4.3116772673970E+12 2.5057022743900E+08 1.0000001375821E+00 4.5157071273630E+12 2.5368347646300E+08 1.0000821498958E+00 4.5157110592000E+12 2.5368353646300E+08 1.0000001416758E+00 4.5872635155480E+12 2.5477534045600E+08 9.9979252352417E-01 4.5872674485240E+12 2.5477540045600E+08 1.0000000049370E+00 ) \begintext