 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 nb  -MN      3.898  -29.869 51.7365
  
 covariance matrix (rad2/m.y.2 e-10
    3028.2      49.1     -63.2
      49.1    3494.7      48.8
     -63.2      48.8    3143.2
  
