 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 BH  -co    -34.049   71.712  1.8860
  
 covariance matrix (rad2/m.y.2 e-10
    6855.6     628.4    -553.3
     628.4    7483.3    -802.7
    -553.3    -802.7    6674.2
  
