 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ON  -JZ    -31.939 -115.356 20.9680
  
 covariance matrix (rad2/m.y.2 e-10
    7007.6     134.5     -81.6
     134.5    8373.6    -439.1
     -81.6    -439.1    7333.3
  
