KPL/SCLK EnVision SCLK File =========================================================================== This file is a SPICE spacecraft clock (SCLK) kernel containing information required for EnVision spacecraft on-board clock to UTC conversion. Production/History of this SCLK file -------------------------------------------------------- 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 the ESA SPICE Service at ESAC: Marc Costa Sitja (+34) 91-8131-457 mcosta@sciops.esa.int, esa_spice@sciops.esa.int Alfredo Escalante Lopez (+34) 91-8131-429 alfredo.escalante@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 = ENVISION; SPACECRAFT_NAME = ENVISION; DATA_SET_ID = SCLK_SCET; FILE_NAME = /home/adcs/ADCS/tmp/2014-11-14T12_t2c/sclk_scet.dat; PRODUCT_CREATION_TIME = 2020-07-15T12:00:00; PRODUCT_VERSION_ID = N/A; PRODUCER_ID = A.Escalante; APPLICABLE_START_TIME = 2032-06-14T17:58:08; APPLICABLE_STOP_TIME = N/A; MISSION_ID = 668; SPACECRAFT_ID = 668; MAKCLK Setup file -------------------------------------------------------- SCLKSCET_FILE = /home/adcs/ADCS/tmp/2014-11-14T12_t2c/sclk_scet.dat OLD_SCLK_KERNEL = /home/adcs/ADCS/tmp/2014-11-14T12_t2c/VEX_old.tsc FILE_NAME = /home/adcs/ADCS/tmp/2014-11-14T12_t2c/VEX_new.tsc NAIF_SPACECRAFT_ID = -248 LEAPSECONDS_FILE = /home/adcs/ADCS/tmp/2014-11-14T12_t2c/NAIF0010.TLS PARTITION_TOLERANCE = 6554 LOG_FILE = /home/adcs/ADCS/tmp/2014-11-14T12_t2c/makclk.log Kernel DATA -------------------------------------------------------- \begindata SCLK_KERNEL_ID = ( @2020-07-15/12:00:00.00 ) SCLK_DATA_TYPE_668 = ( 1 ) SCLK01_TIME_SYSTEM_668 = ( 2 ) SCLK01_N_FIELDS_668 = ( 2 ) SCLK01_MODULI_668 = ( 4294967296 65536 ) SCLK01_OFFSETS_668 = ( 0 0 ) SCLK01_OUTPUT_DELIM_668 = ( 1 ) SCLK_PARTITION_START_668 = ( 1.4334022161090E+12 ) SCLK_PARTITION_END_668 = ( 2.8147497671065E+14 ) SCLK01_COEFFICIENTS_668 = ( 0.0000000000000E+00 1.0241207571845554E+09 1.0000005951213E+00) \begintext