Final ejecta structure of model GCD200 along the positive (top) and negative (bottom) z-axis in asymptotic velocity space at 100 s. Detonation ignition occurred close to the negative z-axis. The relative absence of high-velocity IGE in this direction is a reflection of the lack of deflagration ashes (see Fig. 4). The profiles along the ± x-axis and ± y-axis qualitatively resemble the top panel.