 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 NH  -nz    -10.609    4.236  2.5959
  
 covariance matrix (rad2/m.y.2 e-10
    1651.3     289.4    -127.3
     289.4    2874.6    -483.9
    -127.3    -483.9    1845.6
  
