 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 an  -sa     87.875  174.156  0.2695
  
 covariance matrix (rad2/m.y.2 e-10
     110.3       7.9    -129.3
       7.9      20.9      -5.0
    -129.3      -5.0     190.1
  
