 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ps  -pa     -4.631  -41.868  0.8898
  
 covariance matrix (rad2/m.y.2 e-10
     909.6    -991.2    -576.9
    -991.2    1116.6     642.4
    -576.9     642.4     402.8
  
