 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 NH  -sc     -0.726   -3.537  2.4949
  
 covariance matrix (rad2/m.y.2 e-10
    1881.4    -262.4    -801.2
    -262.4    2538.7    1298.5
    -801.2    1298.5    5513.1
  
