 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 GP  -ON    -15.000   59.691  4.8471
  
 covariance matrix (rad2/m.y.2 e-10
    3355.3     134.5     -81.6
     134.5    4721.2    -439.1
     -81.6    -439.1    3680.9
  
