 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ON  -EA    -18.587 -123.869 10.3172
  
 covariance matrix (rad2/m.y.2 e-10
    6023.0     134.5     -81.6
     134.5    7389.0    -439.1
     -81.6    -439.1    6348.7
  
