 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sc  -am    -79.419  -26.013  0.2128
  
 covariance matrix (rad2/m.y.2 e-10
     511.6    -283.5    -850.6
    -283.5     998.1    1585.4
    -850.6    1585.4    4482.1
  
