 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 BU  -su    -13.862  -76.306  2.0704
  
 covariance matrix (rad2/m.y.2 e-10
    1539.9       0.0       0.0
       0.0    1539.9       0.0
       0.0       0.0    1539.9
  
