 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 BU  -TO    -27.174 -159.711  9.0648
  
 covariance matrix (rad2/m.y.2 e-10
    9566.8    -346.4     144.3
    -346.4   10351.6      73.4
     144.3      73.4    9754.8
  
