 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 lw  -xx     51.886  -69.519  0.2856
  
 covariance matrix (rad2/m.y.2 e-10
     311.9     257.0    -382.2
     257.0     281.2    -324.0
    -382.2    -324.0     517.3
  
