KPL/SCLK KPLO SCLK File =========================================================================== This file is a SPICE spacecraft clock (SCLK) kernel containing information required for conversion between the Korea Pathfinder Lunar Orbiter (KPLO) spacecraft on-board clock (aka OBT) and UTC. The NAIF SCLK ID for this clock is -155. Production/History of this SCLK file -------------------------------------------------------- This file was generated by the NAIF utility program MAKCLK, version 5.0.0, from the most recent KPLO spacecraft SCLKvSCET file (see corresponding sections of these comments for a copy of the source SCLKvSCET file and MAKCLK setup file). Usage -------------------------------------------------------- This file must be loaded into the user's program by a call to the FURNSH subroutine CALL FURNSH ( 'this_file_name; ) -- FORTRAN furnsh_c ( "this_file_name" ); -- C cspice_furnsh, 'this_file_name' -- IDL cspice_furnsh( 'this_file_name' ) -- MATLAB in order to use the SPICELIB SCLK family of subroutines to convert between KPLO spacecraft on-board clock and other time systems supported in SPICE. SCLK Format -------------------------------------------------------- The on-board clock, the conversion for which is provided by this SCLK file, consists of two fields: WWWW:FFFFFFF where: WWWW -- count of on-board weeks (OBT-WEEK). The nominal duration of 1 OBT-WEEK tick is 604800 seconds. The value of this field can range from 0 to 5217, which is approximately 100 years expressed in weeks. FFFFFFF -- count of fractions of on-board seconds (OBT-SECOND). The nominal duration of 1 OBT-SECOND tick is 1/8 second. The value of this field can range from 0 to 4838399. Nominally the OBT starts at 0 on 2000. Jan. 1.5 (J2000 Epoch 2451545.0) UTC and runs synchronously with UTC, adjusted for leap seconds. References -------------------------------------------------------- 1. SCLK Required Reading Document 2. MAKCLK User's Guide Document Contacts -------------------------------------------------------- If you have any questions regarding this data contact: Dr. Jo Ryeong Yim, jryim@kari.re.kr Source SCLKvSCET File -------------------------------------------------------- CCSD3ZS00001$$sclk$$NJPL3KS0L015$$scet$$ MISSION-NAME=KPLO; SPACECRAFT-NAME=KPLO; DATA-SET-ID=SCLK-SCET; FILE-NAME=kplo_190826_v01.sclk_scet; PRODUCT-CREATION-TIME=2019-08-26T15:00:00; PRODUCT-VERSION-ID=UNK; PRODUCER-ID=NAIF; APPLICABLE-START-TIME=2000-001T12:00:00; APPLICABLE-STOP-TIME=2030-001T12:00:00; MISSION-ID=UNK; SPACECRAFT-ID=155; CCSD3RE00000$$scet$$NJPL3IS00613$$data$$ *____SCLK0_______ ____SCET0____________ _DUT__ _SCLKRATE___ 0000:0000000 2000-001T12:00:00.000 64.184 604800.0000 0313:0345592 2005-365T23:59:59.000 64.184 1209600.0000 0313:0345600 2006-001T00:00:00.000 65.184 604800.0000 0469:3110392 2008-366T23:59:59.000 65.184 1209600.0000 0469:3110400 2009-001T00:00:00.000 66.184 604800.0000 0652:0345592 2012-182T23:59:59.000 66.184 1209600.0000 0652:0345600 2012-183T00:00:00.000 67.184 604800.0000 0808:2419192 2015-181T23:59:59.000 67.184 1209600.0000 0808:2419200 2015-182T00:00:00.000 68.184 604800.0000 0887:0345592 2016-366T23:59:59.000 68.184 1209600.0000 0887:0345600 2017-001T00:00:00.000 69.184 604800.0000 CCSD3RE00000$$data$$CCSD3RE00000$$sclk$$ MAKCLK Setup file -------------------------------------------------------- SCLKSCET_FILE = kplo_190826_v01.sclk_scet OLD_SCLK_KERNEL = kplo_sclk.template FILE_NAME = kplo_190826_v01.tsc NAIF_SPACECRAFT_ID = -155 LEAPSECONDS_FILE = naif0012.tls PARTITION_TOLERANCE = 2 LOG_FILE = kplo_190826_v01.log Kernel DATA -------------------------------------------------------- \begindata SCLK_KERNEL_ID = ( @2019-08-26/16:34:48.39 ) SCLK_DATA_TYPE_155 = ( 1 ) SCLK01_TIME_SYSTEM_155 = ( 2 ) SCLK01_N_FIELDS_155 = ( 2 ) SCLK01_MODULI_155 = ( 5218 4838400 ) SCLK01_OFFSETS_155 = ( 0 0 ) SCLK01_OUTPUT_DELIM_155 = ( 2 ) SCLK_PARTITION_START_155 = ( 0.0000000000000E+00 ) SCLK_PARTITION_END_155 = ( 2.5246771199000E+10 ) SCLK01_COEFFICIENTS_155 = ( 0.0000000000000E+00 6.4184000000000E+01 6.0480000000000E+05 1.5147647920000E+09 1.8934566318400E+08 1.2096000000000E+06 1.5147648000000E+09 1.8934566518400E+08 6.0480000000000E+05 2.2723199920000E+09 2.8404006418400E+08 1.2096000000000E+06 2.2723200000000E+09 2.8404006618400E+08 6.0480000000000E+05 3.1549823920000E+09 3.9437286518400E+08 1.2096000000000E+06 3.1549824000000E+09 3.9437286718400E+08 6.0480000000000E+05 3.9118463920000E+09 4.8898086618400E+08 1.2096000000000E+06 3.9118464000000E+09 4.8898086818400E+08 6.0480000000000E+05 4.2920063920000E+09 5.3650086718400E+08 1.2096000000000E+06 4.2920064000000E+09 5.3650086918400E+08 6.0480000000000E+05 ) \begintext