G_ν recorded at 11 ms, as a function of the angle μ₁, representing the projection of the neutrino wavevector ﹩{\boldsymbol{k}}﹩ onto the radial unit vector ﹩\hat{r}﹩, as described in Equation (A1). Results for two simulations with (pink) and without (teal) oscillations are shown. The radial and polar angle coordinates corresponding to each location are indicated in the top-left corner of each panel (see Figure 2). FFCs erase ELN–XLN crossings by eliminating the shallower side of the crossing (smaller integral) while conserving the energy-integrated G_ν, consistent with expectations.