 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sw  -pa     -3.839  -42.359  1.4444
  
 covariance matrix (rad2/m.y.2 e-10
  130589.7  -65860.8 -228117.3
  -65860.8   36795.6  116449.1
 -228117.3  116449.1  402923.2
  
