 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sw  -xx    -29.942  -36.867  1.3616
  
 covariance matrix (rad2/m.y.2 e-10
  130548.9  -65657.6 -228089.2
  -65657.6   35924.6  116372.0
 -228089.2  116372.0  402767.5
  
