tml">setmsg_c</a>(&quot;Intercept not found for the boresight vector.&quot;);
                   <a href="sigerr_c.html">sigerr_c</a>(&quot;SPICE(NOINTERCEPT)&quot;);
                 }

                 /.
                 Convert the intersection point of the selected boundary
                 vector and Mars from rectangular into latitudinal
                 coordinates. Convert radians to degrees.
                 ./
                 <a href="reclat_c.html">reclat_c</a> ( spoint, &amp;radius, &amp;lon, 