 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 yz  -an     55.845 -113.351  0.0844
  
 covariance matrix (rad2/m.y.2 e-10
     300.2     104.3      47.5
     104.3     382.5     120.5
      47.5     120.5     171.0
  
