 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 AS  -xx     19.425  122.867  0.1239
  
 covariance matrix (rad2/m.y.2 e-10
    1722.2      99.3      -3.6
      99.3    2210.5     103.7
      -3.6     103.7    1841.8
  
