 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 BU  -NI     -0.654  -26.268  4.1818
  
 covariance matrix (rad2/m.y.2 e-10
    5275.4    -346.4     144.3
    -346.4    6060.3      73.4
     144.3      73.4    5463.5
  
