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   void spkw08_c ( SpiceInt            handle,
                   SpiceInt            body,
                   SpiceInt            center,
                   ConstSpiceChar    * frame,
                   SpiceDouble         first,
                   SpiceDouble         last,
                   ConstSpiceChar    * segid,
                   SpiceInt            degree,
                   SpiceInt            n,
                   ConstSpiceDouble    states[][6],
                   SpiceDouble         epoch1,
                   SpiceDouble         step           )


   Write a type 8 segment to an SPK file. 






   Variable  I/O  Description 
   --------  ---  -------------------------------------------------- 
   MAXDEG     P   Maximum degree of interpolating polynomials.
   TOLSCL     P   Scale factor used to compute time bound tolerance.
   handle     I   Handle of an SPK file open for writing. 
   body       I   NAIF code for an ephemeris object. 
   center     I   NAIF code for center of motion of BODY. 
   frame      I   Reference frame name. 
   first      I   Start time of interval covered by segment. 
   last       I   End time of interval covered by segment. 
   segid      I   Segment identifier. 
   degree     I   Degree of interpolating polynomials. 
   n          I   Number of states. 
   states     I   Array of states. 
   epoch1     I   Epoch of first state in states array. 
   step       I   Time step separating epochs of states. 
   MAXDEG     P   Maximum allowed degree of interpolating polynomial. 


   handle         is the file handle of an SPK file that has been 
                  opened for writing. 
   body           is the NAIF integer code for an ephemeris object 
                  whose state relative to another body is described 
                  by the segment to be created. 
   center         is the NAIF integer code for the center of motion 
                  of the object identified by body. 
   frame          is the NAIF name for a reference frame 
                  relative to which the state information for body 
                  is specified. 
   last           are, respectively, the start and stop times of 
                  the time interval over which the segment defines 
                  the state of body. 
   segid          is the segment identifier.  An SPK segment 
                  identifier may contain up to 40 characters. 
   degree         is the degree of the Lagrange polynomials used to 
                  interpolate the states.  All components of the 
                  state vectors are interpolated by polynomials of 
                  fixed degree. 
   n              is the number of states in the input state vector 
   states         contains a time-ordered array of geometric states 
                  ( x, y, z, dx/dt, dy/dt, dz/dt, in kilometers and 
                  kilometers per second ) of body relative to center, 
                  specified relative to frame. 
   epoch1         is the epoch corresponding to the first state in 
                  the state array.  Because extra states are needed 
                  at the beginning and end of the segment in order 
                  for the interpolation method to work, epoch1 will 
                  normally precede first. 
   step           is the time step separating the epochs of adjacent 
                  states in the input state array.  step is specified 
                  in seconds. 


   None.  See $Particulars for a description of the effect of this 


   The parameters below are declared in the Fortran include file, which is part of the Fortran SPICE Toolkit (aka
   SPICELIB). The values of those parameters are used in CSPICE code
   generated by running f2c on SPICELIB source code. They are not
   directly referenced by code in this module.

      MAXDEG         is the maximum allowed degree of the interpolating 
                     The value of MAXDEG is 27.

      TOLSCL         is a tolerance scale factor (also called a
                     "relative tolerance") used for time coverage bound
                     checking. TOLSCL is unitless. TOLSCL produces a
                     tolerance value via the formula
                        TOL = TOLSCL * max( abs(first), abs(last) )
                     where `first' and `last' are the coverage time
                     bounds of a type 8 segment, expressed as seconds
                     past J2000 TDB.
                     The resulting parameter TOL is used as a tolerance
                     for comparing the input segment descriptor time
                     bounds to the first and last epoch covered by the
                     sequence of time intervals defined by the inputs
                     to spkw08_c:

                     The value of TOLSCL is 1.e-13.


   If any of the following exceptions occur, this routine will return 
   without creating a new segment. 
   1)  If FRAME is not a recognized name, the error 
       SPICE(INVALIDREFFRAME) is signaled. 
   2)  If the last non-blank character of SEGID occurs past index 40, 
       the error SPICE(SEGIDTOOLONG) is signaled. 
   3)  If SEGID contains any nonprintable characters, the error 
       SPICE(NONPRINTABLECHARS) is signaled. 
   4)  If DEGREE is not at least 1 or is greater than MAXDEG, the 
       error SPICE(INVALIDDEGREE) is signaled. 
   5)  If the number of states N is not at least DEGREE+1, the error 
       SPICE(TOOFEWSTATES) will be signaled. 
   6)  If FIRST is greater than LAST then the error 
       SPICE(BADDESCRTIMES) will be signaled. 
   7)  If STEP is non-positive, the error SPICE(INVALIDSTEPSIZE) will 
       be signaled. 
   8)  If the start time of the first record exceeds the descriptor
       begin time by more than a computed tolerance, or if the end time
       of the last record precedes the descriptor end time by more than
       a computed tolerance, the error SPICE(COVERAGEGAP) is signaled.
       See the Parameters section above for a description of the
   9)  The error SPICE(EMPTYSTRING) is signaled if either input
       string does not contain at least one character, since the
       input strings cannot be converted to a Fortran-style string
       in this case.
   10) The error SPICE(NULLPOINTER) is signaled if either input string
       pointer is null.


   A new type 8 SPK segment is written to the SPK file attached 
   to handle. 


   This routine writes an SPK type 08 data segment to the open SPK 
   file according to the format described in the type 08 section of 
   the SPK Required Reading. The SPK file must have been opened with 
   write access. 


   Suppose that you have states and are prepared to produce 
   a segment of type 08 in an SPK file. 
   The following code fragment could be used to add the new segment 
   to a previously opened SPK file attached to HANDLE. The file must 
   have been opened with write access. 
      #include "SpiceUsr.h"
      First open the SPK file and get a handle for it. 
      spkopa_c ( spknam, &handle ); 

      Create a segment identifier. 
      segid = "MY_SAMPLE_SPK_TYPE_8_SEGMENT";

      Write the segment. 
      spkw08_c (  handle,  body,    center,  frame, 
                  first,   last,    segid,   degree, 
                  n,       states,  epoch1,  step     );
      Close the file. 
      spkcls_c ( handle );






   K.R. Gehringer (JPL) 
   N.J. Bachman   (JPL) 
   J.M. Lynch     (JPL) 
   W.L. Taber     (JPL) 


   -CSPICE Version 2.0.0, 11-JAN-2014 (NJB) 

       Relaxed test on relationship between the time bounds of the
       input record set (determined by `epoch1', `step', and `n') and
       the descriptor bounds `first' and `last'. Now the descriptor
       bounds may extend beyond the time bounds of the record set by a
       ratio computed using the parameter TOLSCL (see Parameters above
       for details). Added checks on input polynomial degree.

   -CSPICE Version 1.0.0, 29-JUN-1999 (NJB)


   write spk type_8 ephemeris data segment 
Wed Apr  5 17:54:44 2017