 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 co  -am     16.539 -124.521  0.9740
  
 covariance matrix (rad2/m.y.2 e-10
    1521.5     505.0    -739.0
     505.0    1570.3    -135.0
    -739.0    -135.0     868.7
  
