 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ar  -MS      4.938  119.228  3.3387
  
 covariance matrix (rad2/m.y.2 e-10
    1997.0     -29.9     161.3
     -29.9    3552.4     214.4
     161.3     214.4    2038.1
  
