 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ps  -jf     -3.760  -80.306  0.9917
  
 covariance matrix (rad2/m.y.2 e-10
   11049.5   12073.0  -16219.4
   12073.0   18519.1  -20144.2
  -16219.4  -20144.2   25977.2
  
