KPL/SCLK


MER-2 SCLK File
===========================================================================

     This file is a SPICE spacecraft clock (SCLK) kernel containing
     information required for MER-2 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-2 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-2 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-2;
     DATA-SET-ID=SCLK-SCET;
     FILE-NAME=MER-254-SCLKSCET.00006;
     PRODUCT-CREATION-TIME=2004-013T08:32:30.000;
     PRODUCT-VERSION-ID=00006;
     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=254;     


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

     SCLKSCET_FILE          = MER_254_SCLKSCET.00006.clean
     OLD_SCLK_KERNEL        = /sdma/naif/ops/projects/MER/scet/bin/mer2_template.tsc
     FILE_NAME              = MER_254_SCLKSCET.00006.tsc
     NAIF_SPACECRAFT_ID     = -254
     LEAPSECONDS_FILE       = /sdma/naif/ops/projects/MER/lsk/mer.tls
     PARTITION_TOLERANCE    = 10
     LOG_FILE               = MER_254_SCLKSCET.00006.log
     


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

\begindata


SCLK_KERNEL_ID           = ( @2004-01-14/15:50:04.00 )

SCLK_DATA_TYPE_254        = ( 1 )
SCLK01_TIME_SYSTEM_254    = ( 2 )
SCLK01_N_FIELDS_254       = ( 2 )
SCLK01_MODULI_254         = ( 4294967296 256 )
SCLK01_OFFSETS_254        = ( 0 0 )
SCLK01_OUTPUT_DELIM_254   = ( 1 )

SCLK_PARTITION_START_254  = ( 0.0000000000000E+00 )

SCLK_PARTITION_END_254    = ( 1.0995116277750E+12 )

SCLK01_COEFFICIENTS_254   = (
 
    0.0000000000000E+00     -3.5763036976277E-10     1.0000000000000E+00
    2.7781376000000E+10     1.0852100000000E+08     1.0013699999750E+00
    2.7781632000000E+10     1.0852200137000E+08     9.9999390370382E-01
    2.7816192000000E+10     1.0865700054700E+08     1.0000090000033E+00
    2.7816448000000E+10     1.0865800055600E+08     9.9999711459969E-01
    2.7979520000000E+10     1.0929499871800E+08     1.0004819999933E+00
    2.7979776000000E+10     1.0929599920000E+08     9.9999788105724E-01
    2.8096000000000E+10     1.0974999823800E+08     1.0000390000045E+00
    2.8096256000000E+10     1.0975099827700E+08     9.9999797435897E-01
    2.8246016000000E+10     1.1033599709200E+08     9.9998700001836E-01
    2.8246272000000E+10     1.1033699707900E+08     9.9999795497629E-01
    2.8354304000000E+10     1.1075899621600E+08     1.0000169999897E+00
    2.8354560000000E+10     1.1075999623300E+08     9.9999800578035E-01
    2.8443136000000E+10     1.1110599554300E+08     1.0000250000060E+00
    2.8443392000000E+10     1.1110699556800E+08     9.9999807788161E-01
    2.8854272000000E+10     1.1271199248300E+08     1.0002159999907E+00
    2.8854528000000E+10     1.1271299269900E+08     9.9999828833175E-01
    2.9120000000000E+10     1.1374999092400E+08     1.0001329999864E+00
    2.9120256000000E+10     1.1375099105700E+08     9.9999842069487E-01
    2.9459200000000E+10     1.1507498896600E+08     9.9995499998331E-01
    2.9459456000000E+10     1.1507598892100E+08     9.9999838909427E-01
    3.0013440000000E+10     1.1723998543500E+08     9.9993200001121E-01
    3.0013696000000E+10     1.1724098536700E+08     9.9999835809568E-01
    3.1126784000000E+10     1.2158897822800E+08     9.9997900000215E-01
    3.1127040000000E+10     1.2158997820700E+08     9.9999835440785E-01
    3.1414528000000E+10     1.2271297635900E+08     1.0003589999974E+00
    3.1414784000000E+10     1.2271397671800E+08     9.9999842091232E-01
    3.2279040000000E+10     1.2608997138700E+08     9.9982799997926E-01
    3.2279296000000E+10     1.2609097121500E+08     9.9999865667810E-01
    3.2578304000000E+10     1.2725896964600E+08     1.0053209999800E+00
    3.2578560000000E+10     1.2725997496700E+08     1.0000104180000E+00 )

\begintext