 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 nb  -pa     58.677  -66.570  0.9351
  
 covariance matrix (rad2/m.y.2 e-10
     107.5      49.1     -63.2
      49.1     573.9      48.8
     -63.2      48.8     222.5
  
