 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 AT  -ps     60.918   68.846  1.6416
  
 covariance matrix (rad2/m.y.2 e-10
    2635.4    -910.2    -595.6
    -910.2    3196.0     718.7
    -595.6     718.7    2200.4
  
