Find local coordinate system (LCS) of a mechanism body

Hi,

I would like to find out how the LCS (local coordinate system) of a mechanism body is determined in the CREO mechanism module. Does anyone know how the system calculates this CSYS? Background of my question: I am trying to export the rotational placement of a certain body by using the Euler angle 1-2-3 measures in a kinematic study but these always refer to the body's LCS and I don't know where that is compared to the parts/assemblies inside that body.

Thanks a lot for your help!