 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 xx  -sa     22.618   67.167  0.1090
  
 covariance matrix (rad2/m.y.2 e-10
      41.7       0.3     -26.2
       0.3      62.0      50.0
     -26.2      50.0     102.1
  
