 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 xx  -pa     63.576  -65.302  0.6509
  
 covariance matrix (rad2/m.y.2 e-10
      43.2      31.3      -4.7
      31.3     244.8       7.6
      -4.7       7.6      72.5
  
