Small tritrigonary hecatonicosiprismatodishecatonicosachoron

The small tritrigonary hecatonicosiprismatodishecatonicosachoron, or sit thippady, is a nonconvex uniform polychoron that consists of 120 small ditrigonary icosidodecahedra, 720 pentagrammic prisms, 120 truncated dodecahedra, and 120 small rhombidodecahedra. One small ditrigonary icosidodecahedron, three pentagrammic prisms, three truncated dodecahedra, and three small rhombidodecahedra join at each vertex.

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