 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 NI  -an     -7.316 -176.014  3.2784
  
 covariance matrix (rad2/m.y.2 e-10
    3614.0      63.7     103.3
      63.7    3977.7     -47.6
     103.3     -47.6    3742.2
  
