KPL/SCLK Juventas SCLK File -- TEST DATA -- FICTIONAL =========================================================================== This file is a SPICE spacecraft clock (SCLK) kernel containing information required for the Juventas spacecraft on-board clock to UTC conversion. This file contains the data necessary for converting from ET to ticks for the FICTIONAL Juventas spacecraft clock (clock ID code 15513) This is intended for study purposes or for those situations in which a clock is not available for the structure whose orientation will be modelled by a C-kernel. Version and Date ----------------------------------------------------------------------------- Version 0.1 -- February 28, 2024 -- Rafael Andres Blasco, ESAC/ESA. Initial release. Production/History of this SCLK file ----------------------------------------------------------------------------- This file has been manually created by Rafael Andres Blasco (ESAC/ESA) and contains FICTIONAL DATA. It is intended ONLY for study purposes. NO DATA ANALYSIS SHALL BE PERFORMED BASED ON THIS FILE. This SCLK kernel is intended to be used with test CK files with structure IDs listed below on board the spacecraft -15513000 (Juventas): Name NAIF ID ====================== ========= JUVENTAS_SPACECRAFT -15513000 Usage ----------------------------------------------------------------------------- This file is used by the SPICE system as follows: programs that make use of this frame kernel must "load" the kernel normally during program initialization. Loading the kernel associates the data items with their names in a data structure called the "kernel pool". The routine that loads a kernel into the pool is shown below: FORTRAN: (SPICELIB) CALL FURNSH ( frame_kernel_name ) C: (CSPICE) furnsh_c ( frame_kernel_name ); IDL: (ICY) cspice_furnsh, frame_kernel_name MATLAB: (MICE) cspice_furnsh ( 'frame_kernel_name' ) This file must be loaded into the user's program in order to use the SPICE SCLK family of subroutines to convert Juventas FICTIONAL spacecraft on-board clock to ET and vice versa. This file was created and may be updated with a text editor or word processor. 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; normally this field value is within 0..65535 range. References ---------------------------------------------------------------------------- 1. SCLK Required Reading Document 2. TIME Required Reading Document 3. KERNEL Pool Required Reading Document Contact Information ----------------------------------------------------------------------------- If you have any questions regarding this file contact the ESA SPICE Service at ESAC: Alfredo Escalante Lopez (+34) 91-8131-429 spice@sciops.esa.int or NAIF at JPL: Boris Semenov +1 (818) 354-8136 Boris.Semenov@jpl.nasa.gov Kernel DATA ----------------------------------------------------------------------------- This SCLK file is constructed so that the valid SCLK strings are simply the number of TDB seconds that have passed since the Ephemeris epoch @2024-OCT-08-00:00:00.000. Thus 1/288929292.8201 simply represents the epoch that occurs 288929292.12514 TDB seconds past the ET epoch @2024-OCT-08-00:00:00.000. For all time, the clock runs at the same rate as TDB. There is only one partition for this clock. \begindata SCLK_KERNEL_ID = ( @28-FEB-2024 ) SCLK_DATA_TYPE_15513 = ( 1 ) SCLK01_TIME_SYSTEM_15513 = ( 1 ) SCLK01_N_FIELDS_15513 = ( 2 ) SCLK01_MODULI_15513 = ( 1000000000 10000 ) SCLK01_OFFSETS_15513 = ( 0 0 ) SCLK01_OUTPUT_DELIM_15513 = ( 1 ) SCLK_PARTITION_START_15513 = ( 0.000000000E+00 ) SCLK_PARTITION_END_15513 = ( 1.000000000E+14 ) SCLK01_COEFFICIENTS_15513 = ( 0.000000000E+00 @2024-OCT-08-00:00:00.0000 1 ) \begintext End of SCLK file.