 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 BU  -ND     -7.280  -76.020  2.1560
  
 covariance matrix (rad2/m.y.2 e-10
    3406.9    -207.1      -5.0
    -207.1    4580.7     294.4
      -5.0     294.4    3633.8
  
