 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 NB  -na    -36.522  120.511  0.9884
  
 covariance matrix (rad2/m.y.2 e-10
    1704.4      -3.1     -35.7
      -3.1    2244.3     151.2
     -35.7     151.2    1814.9
  
