">furnsh_c</a>.

      - Frame data:  if a frame definition is required to convert
        the observer and target states to the body-fixed frame of
        the target, that definition must be available in the kernel
        pool.  Typically the definition is supplied by loading a
        frame kernel via <a href="furnsh_c.html">furnsh_c</a>. 
 
   In all cases, kernel data are normally loaded once per program
   run, NOT every time this routine is called.

 </PRE>
<h4><a name="Particulars">Particulars</a><