Procedure

     SPKS01 ( S/P Kernel, subset, type 1 )

     SUBROUTINE SPKS01 ( HANDLE, BADDR, EADDR, BEGIN, END )

Abstract

     Extract a subset of the data in a SPK segment of type 1
     into a new segment.

Required_Reading

     SPK

Keywords

     EPHEMERIS

Declarations

     IMPLICIT NONE

     INTEGER               HANDLE
     INTEGER               BADDR
     INTEGER               EADDR
     DOUBLE PRECISION      BEGIN
     DOUBLE PRECISION      END

Brief_I/O

     VARIABLE  I/O  DESCRIPTION
     --------  ---  --------------------------------------------------
     HANDLE     I   Handle of source segment.
     BADDR      I   Beginning address of source segment.
     EADDR      I   Ending address of source segment.
     BEGIN      I   Beginning (initial epoch) of subset.
     END        I   End (final epoch) of subset.

Detailed_Input

     HANDLE,
     BADDR,
     EADDR    are the file handle assigned to a SPK file, and the
              beginning and ending addresses of a segment within
              the file. Together they determine a complete set of
              ephemeris data, from which a subset is to be
              extracted.

     BEGIN,
     END      are the initial and final epochs (ephemeris time)
              of the subset.

Detailed_Output

     None.

Parameters

     None.

Exceptions

     1)  If an error occurs while reading data from the source SPK
         file, the error is signaled by a routine in the call tree of
         this routine.

     2)  If an error occurs while writing data to the output SPK file,
         the error is signaled by a routine in the call tree of this
         routine.

Files

     See argument HANDLE.

Particulars

     The exact structure of a segment of data type 1 is detailed in
     the SPK Required Reading file.

Examples

     None.

Restrictions

     None.

Literature_References

     None.

Author_and_Institution

     J. Diaz del Rio    (ODC Space)
     H.A. Neilan        (JPL)
     W.L. Taber         (JPL)
     I.M. Underwood     (JPL)
     E.D. Wright        (JPL)

Version

    SPICELIB Version 1.1.1, 14-APR-2021 (JDR)

        Edited the header to comply with NAIF standard. Completed
        $Exceptions section. Moved SPK required reading from
        $Literature_References to $Required_Reading section.

    SPICELIB Version 1.1.0, 07-SEP-2001 (EDW)

        Replaced DAFRDA call with DAFGDA.
        Added IMPLICIT NONE.

    SPICELIB Version 1.0.3, 10-MAR-1992 (WLT)

        Comment section for permuted index source lines was added
        following the header.

    SPICELIB Version 1.0.2, 23-AUG-1991 (HAN)

        SPK01 was removed from the $Required_Reading section of the
        header. The information in the SPK01 Required Reading file
        is now part of the SPK Required Reading file.

    SPICELIB Version 1.0.1, 22-MAR-1990 (HAN)

        Literature references added to the header.

    SPICELIB Version 1.0.0, 31-JAN-1990 (IMU)