KPL/SCLK


MER-1 SCLK File
===========================================================================

     This file is a SPICE spacecraft clock (SCLK) kernel containing
     information required for MER-1 spacecraft on-board clock to UTC
     conversion.


Production/History of this SCLK file
--------------------------------------------------------

     This file was generated by the NAIF utility program MAKCLK, version
     3.5.2, from the most recent MER-1 spacecraft SCLKvSCET file (see
     corresponding section of the description for the SCLKvSCET SFDU header
     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' )

     in order to use the SPICELIB SCLK family of subroutines to convert
     MER-1 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 1/256 of a second

     and nominally starts at the J2000 epoch (2000 JAN 01 12:00 ET).


References
--------------------------------------------------------

         1.   SCLK Required Reading Document

         2.   MAKCLK User's Guide Document

         3.   SFOC SCLKvSCET SIS Document


Inquiries
--------------------------------------------------------

     If you have any questions regarding this file contact 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 SFDU Header
--------------------------------------------------------

     MISSION-NAME=MARS-EXPLORATION-ROVER;
     SPACECRAFT-NAME=MARS-EXPLORATION-ROVER-1;
     DATA-SET-ID=SCLK-SCET;
     FILE-NAME=MER-253-SCLKSCET.00001;
     PRODUCT-CREATION-TIME=2003-104T17:00:00.000;
     PRODUCT-VERSION-ID=00001;
     PRODUCER-ID=DSMS-TIME-SERVICES;
     APPLICABLE-START-TIME=2000-001T11:58:55.816;
     APPLICABLE-STOP-TIME=2004-274T23:59:59.999;
     MISSION-ID=26;
     SPACECRAFT-ID=253;     


MAKCLK Setup file
--------------------------------------------------------

     SCLKSCET_FILE          = MER_253_SCLKSCET.00001.clean
     OLD_SCLK_KERNEL        = /sdma/naif/ops/projects/MER/scet/bin/mer1_template.tsc
     FILE_NAME              = MER_253_SCLKSCET.00001.tsc
     NAIF_SPACECRAFT_ID     = -253
     LEAPSECONDS_FILE       = /sdma/naif/ops/projects/MER/lsk/mer.tls
     PARTITION_TOLERANCE    = 10
     LOG_FILE               = MER_253_SCLKSCET.00001.log
     


Kernel DATA
--------------------------------------------------------

\begindata


SCLK_KERNEL_ID           = ( @2003-04-17/00:03:03.00 )

SCLK_DATA_TYPE_253        = ( 1 )
SCLK01_TIME_SYSTEM_253    = ( 2 )
SCLK01_N_FIELDS_253       = ( 2 )
SCLK01_MODULI_253         = ( 4294967296 256 )
SCLK01_OFFSETS_253        = ( 0 0 )
SCLK01_OUTPUT_DELIM_253   = ( 1 )

SCLK_PARTITION_START_253  = ( 0.0000000000000E+00 )

SCLK_PARTITION_END_253    = ( 1.0995116277750E+12 )

SCLK01_COEFFICIENTS_253   = (
 
    0.0000000000000E+00     -3.5763036976277E-10     1.0000000000037E+00
    2.8105717807000E+10     1.0978796018400E+08     1.0000000000000E+00 )

\begintext