Acronym	sidpixathi
Name	small dipentagonal hexacositrihecatonicosachoron
Circumradius	sqrt[4+sqrt(5)] = 2.497212
Colonel of regiment	padohi
Face vector	1440, 7200, 6240, 960
Confer	general polytopal classes: Wythoffian polychora
External links

As abstract polytope sidpixathi is isomorphic to gidpixathi, thereby replacing pentagons and pentagrams, resp. replacing gad by sissid, ti by tiggy, and gike by ike.

Incidence matrix according to Dynkin symbol

x3x3o5/2o5/4*a

. . .   .      | 1440 |    5    5 |   10    5    5 |   5   5   1   1
---------------+------+-----------+----------------+----------------
x . .   .      |    2 | 3600    * |    2    2    0 |   1   2   1   0
. x .   .      |    2 |    * 3600 |    2    0    2 |   2   1   0   1
---------------+------+-----------+----------------+----------------
x3x .   .      |    6 |    3    3 | 2400    *    * |   1   1   0   0
x . .   o5/4*a |    5 |    5    0 |    * 1440    * |   0   1   1   0
. x3o   .      |    3 |    0    3 |    *    * 2400 |   1   0   0   1
---------------+------+-----------+----------------+----------------
x3x3o   .      ♦   12 |    6   12 |    4    0    4 | 600   *   *   *
x3x .   o5/4*a ♦   60 |   60   30 |   20   12    0 |   * 120   *   *
x . o5/2o5/4*a ♦   12 |   30    0 |    0   12    0 |   *   * 120   *
. x3o5/2o      ♦   12 |    0   30 |    0    0   20 |   *   *   * 120

x3x3o5/3o5*a

. . .   .    | 1440 |    5    5 |   10    5    5 |   5   5   1   1
-------------+------+-----------+----------------+----------------
x . .   .    |    2 | 3600    * |    2    2    0 |   1   2   1   0
. x .   .    |    2 |    * 3600 |    2    0    2 |   2   1   0   1
-------------+------+-----------+----------------+----------------
x3x .   .    |    6 |    3    3 | 2400    *    * |   1   1   0   0
x . .   o5*a |    5 |    5    0 |    * 1440    * |   0   1   1   0
. x3o   .    |    3 |    0    3 |    *    * 2400 |   1   0   0   1
-------------+------+-----------+----------------+----------------
x3x3o   .    ♦   12 |    6   12 |    4    0    4 | 600   *   *   *
x3x .   o5*a ♦   60 |   60   30 |   20   12    0 |   * 120   *   *
x . o5/3o5*a ♦   12 |   30    0 |    0   12    0 |   *   * 120   *
. x3o5/3o    ♦   12 |    0   30 |    0    0   20 |   *   *   * 120

x3x3/2o5/2o5*a

. .   .   .    | 1440 |    5    5 |   10    5    5 |   5   5   1   1
---------------+------+-----------+----------------+----------------
x .   .   .    |    2 | 3600    * |    2    2    0 |   1   2   1   0
. x   .   .    |    2 |    * 3600 |    2    0    2 |   2   1   0   1
---------------+------+-----------+----------------+----------------
x3x   .   .    |    6 |    3    3 | 2400    *    * |   1   1   0   0
x .   .   o5*a |    5 |    5    0 |    * 1440    * |   0   1   1   0
. x3/2o   .    |    3 |    0    3 |    *    * 2400 |   1   0   0   1
---------------+------+-----------+----------------+----------------
x3x3/2o   .    ♦   12 |    6   12 |    4    0    4 | 600   *   *   *
x3x   .   o5*a ♦   60 |   60   30 |   20   12    0 |   * 120   *   *
x .   o5/2o5*a ♦   12 |   30    0 |    0   12    0 |   *   * 120   *
. x3/2o5/2o    ♦   12 |    0   30 |    0    0   20 |   *   *   * 120

x3x3/2o5/3o5/4*a

. .   .   .      | 1440 |    5    5 |   10    5    5 |   5   5   1   1
-----------------+------+-----------+----------------+----------------
x .   .   .      |    2 | 3600    * |    2    2    0 |   1   2   1   0
. x   .   .      |    2 |    * 3600 |    2    0    2 |   2   1   0   1
-----------------+------+-----------+----------------+----------------
x3x   .   .      |    6 |    3    3 | 2400    *    * |   1   1   0   0
x .   .   o5/4*a |    5 |    5    0 |    * 1440    * |   0   1   1   0
. x3/2o   .      |    3 |    0    3 |    *    * 2400 |   1   0   0   1
-----------------+------+-----------+----------------+----------------
x3x3/2o   .      ♦   12 |    6   12 |    4    0    4 | 600   *   *   *
x3x   .   o5/4*a ♦   60 |   60   30 |   20   12    0 |   * 120   *   *
x .   o5/3o5/4*a ♦   12 |   30    0 |    0   12    0 |   *   * 120   *
. x3/2o5/3o      ♦   12 |    0   30 |    0    0   20 |   *   *   * 120