SCMassPropsMsgPayload# struct SCMassPropsMsgPayload# This structure is used in the messaging system to communicate what the mass properties of the vehicle are currently. Public Members double massSC# kg Current spacecraft mass double c_B[3]# m Center of mass of spacecraft with respect to point B double ISC_PntB_B[3][3]# kgm2 Inertia tensor of spacecraft (relative to body)