 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 MS  -xx      2.148  -56.092  3.5655
  
 covariance matrix (rad2/m.y.2 e-10
    1778.3    -244.8      40.0
    -244.8    2749.2     135.2
      40.0     135.2    1878.0
  
