 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 PM  -nz    -56.261   94.442  0.4058
  
 covariance matrix (rad2/m.y.2 e-10
    1861.6     178.0    -134.2
     178.0    3933.9    -426.1
    -134.2    -426.1    2177.4
  
