I can no longer offer this as a mod, as it takes up too much of my Steam cloud space for Workshop items.

This asteroid and other layered sphere asteroids of better quality can be generated in singleplayer game using my Midspace's Admin helper commands mod.

Further details on how to use the mod can be found here [github.com].

With the following example chat command:
/createroidsphere mysphere 1000 1000 1000 1 ice_01 632 none 612

A solid Ice sphere can be created with the command:
/createroidsphere mysphere 1000 1000 1000 1 ice_01 632

could you make a solid ice asteroid sphere?

As of update 01.021.024, Ice_01, Helium_01, Helium_02 no longer exist.