Small rhombic dispentachoron

The small rhombic dispentachoron, or sirdop, is a nonconvex uniform polychoron that consists of 5 truncated tetrahedra, 5 cubohemioctahedra, and 10 triangular prisms. 2 of each join at each vertex.

Vertex coordinates
The vertices are the same as those of the regiment colonel, the small rhombated pentachoron.