 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ar  -sa     48.863    5.461  0.6147
  
 covariance matrix (rad2/m.y.2 e-10
     240.8     161.4     100.4
     161.4     260.4     106.0
     100.4     106.0     179.0
  
