The distributions of current halo mass with respect to the mass at first crossing (M _now/M _FC), initial distance (r ₀), initial velocity (v ₀), maximum velocity (﹩{v}_{\max }﹩), time since first crossing (t _FC), and filament density (n _fil) of 335 bound (blue) and 121 fly-by (red) halos. The y-axis represents a probability density. The errors are statistical errors.