egin time of first logical record. 
 </PRE>
<h4><a name="Detailed_Input">Detailed_Input</a></h4>
<PRE>
 
   handle         DAF handle of an SPK file to which a type 2 segment
                  is to be added. The SPK file must be open for
                  writing.
 
   body           NAIF integer code for an ephemeris object whose 
                  state relative to another body is described by the 
                  segment to be created. 
 
   center         NAIF integer code for the center of motion of