Small ditetrahedronary prismatohecatonicosihexacosichoron

The small ditetrahedronary prismatohecatonicosihexacosichoron, or sadtaphix, is a nonconvex uniform polychoron that consists of 600 tetrahedra, 1200 triangular prisms, and 120 small rhombidodecahedra. Four tetrahedra, twelve triangular prisms, and twelve small rhombidodecahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the small ditetrahedronary hexacosihecatonicosachoron.