 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 BU  -am    -13.333  -75.551  2.1816
  
 covariance matrix (rad2/m.y.2 e-10
    1951.9    -481.1     -23.3
    -481.1    2910.5     381.7
     -23.3     381.7    2454.7
  
