 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ar  -am     19.483    7.637  0.4669
  
 covariance matrix (rad2/m.y.2 e-10
     406.5     262.6     -10.8
     262.6     985.1     451.2
     -10.8     451.2     614.0
  
