 Radius                   (km)  = %18.10e', radius );
            disp( txt )

            txt = ...
               sprintf('   Planetocentric Latitude  (deg) = %18.10e', lat );
            disp( txt )

            txt = ...
               sprintf('   Planetocentric Longitude (deg) = %18.10e', lon );
            disp( txt )

            txt = ...
               sprintf('   Range                    (km)  = %18.10e', ...
                                                               surf.dist );
            d