Isosurfaces of the distribution of density at t ≈ 8400 yr for the ejecta of the favorite model for SNR IC 443 for different viewing angles: along the LoS (left panels), and rotated by 90° about the z-axis of the image (right panels). The opaque irregular isosurfaces correspond to a value of density that is at 1% (upper panels) and 5% (lower panels) of the peak density; their colors give the radial velocity in units of 1000 km s⁻¹ on the isosurface. The semi-transparent surface marks the position of the forward shock; the toroidal semi-transparent structure in purple represents the molecular cloud. See online Movie 2 and Movie 3 for an animation of these data; a navigable 3D graphic is available at https://skfb.ly/6W9oM.