 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 co  -au      6.900 -130.133  1.5869
  
 covariance matrix (rad2/m.y.2 e-10
    1436.1     639.0    -570.2
     639.0    1310.1    -441.8
    -570.2    -441.8     466.7
  
