 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 pa  -ar    -60.016  146.770  1.1590
  
 covariance matrix (rad2/m.y.2 e-10
     253.9     241.3     111.5
     241.3    1041.6      83.9
     111.5      83.9     211.3
  
