 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 NH  -MA     -3.601  -18.587  3.5969
  
 covariance matrix (rad2/m.y.2 e-10
    3989.4    -991.2    -576.9
    -991.2    4196.4     642.4
    -576.9     642.4    3482.6
  
