time
body1.frame_a.r_0[1]
body1.frame_a.r_0[2]
body1.frame_a.r_0[3]
body1.v_0[1]
body1.v_0[2]
body1.v_0[3]
body1.w_a[1]
body1.w_a[2]
body1.w_a[3]
