Comparison of transverse scatter fits. (a) Diffusion versa altitude scatter plot with color coded electron line density. (b) Initial trail radius versa altitude scatter plot with color coded electron line density. (c) Diffusion versa altitude scatter plot with color coded time of flight meteor velocity. (d) Initial trail radius versa altitude scatter plot with color coded time of flight velocity. The initial radius as a function of altitude and speed as measured by Jones & Campbell-Brown (2005) is also shown for comparison.