Great trisoctachoron

The great trisoctachoron, or gotto, is a nonconvex uniform polychoron that consists of 8 tetrahedra, 8 cubohemioctahedra, and 8 truncated tetrahedra. One tetrahedron, three cubohemioctahedra, and three truncated tetrahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the rectified tesseract.