Left: example energy density function vs. depth in an example 1D column. The shaded blue regions represent how we resolve the energy deposition function in our 1D Spheral simulations, where we can define the length of the deposition region, L_Dep, the initial surface resolution, dℓ, the number of nodes with constant dℓ resolution, n_Dep, and the length of the entire column, L_Inner. Right: diagram showing the asteroid (shaded gray) and the NED point source emitting X-rays isotropically (orange shaded region), which illuminate a maximum asteroid surface area out to ﹩{\theta }_{{\rm{\max }}}﹩. In our 2D-axisymmetric Ares simulations and 3D Spheral simulations, N_ang represents the number of resolution elements from θ = 0, measured from the line joining the center of the asteroid to the NED, to ﹩{\theta }_{{\rm{\max }}}﹩.