 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ps  -sw      2.568  136.856  0.5549
  
 covariance matrix (rad2/m.y.2 e-10
  131499.3  -66852.0 -228694.2
  -66852.0   37912.2  117091.5
 -228694.2  117091.5  403326.0
  
