      % style of sub-point definition.
            %
            [ssolpt, trgepc, srfvec] = ...
                           <a href="cspice_subslr.html">cspice_subslr</a>( submth(i), ...
                                          target, et, fixref,  ...
                                          abcorr, obsrvr );

            %
            % Now find the sub-spacecraft point.
            %
            [sscpt, trgepc, srfvec] = ...
                           <a href="cspice_subpnt.html">cspice_subpnt</a>( subm