The on-equator time evolution of the multiple wavelengths launched in mw3opp. Top row: the radial four-velocity, with v^r = 0 indicated by a dashed black line. Bottom row: the magnetic field component B^θ (blue) and electric field component E^ϕ (red). At late times, a forward shock gradually forms at the front of the wave train, while the monster shock transitions from being inflow-dominated (v^r < 0) to outflow-dominated (v^r > 0). Panels are plotted as a function of the light cone coordinate ξ = t − (r − R_NS)/c (corresponding to the stellar surface to the right and the front of the wave train at ξ = 0).