 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 am  -nb     17.039  154.191  0.1685
  
 covariance matrix (rad2/m.y.2 e-10
     266.7      28.2    -159.2
      28.2     579.8     365.5
    -159.2     365.5     663.4
  
