rections.

 </PRE>
<h4><a name="Examples">Examples</a></h4>
<PRE>
 
   1)  Load a planetary ephemeris SPK, then look up a series of 
       geometric positions of the moon relative to the earth, 
       referenced to the J2000 frame. 
 
       #include &lt;stdio.h&gt;
       #include &quot;SpiceUsr.h&quot;

       void main()
       {

          #define        ABCORR        &quot;NONE&quot;
          #define        FRAME         &quot;J2000&quot;

          /.
          The name of the SPK file shown here i