 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sw  -in    -50.319  -49.018  1.4272
  
 covariance matrix (rad2/m.y.2 e-10
  130536.4  -65366.9 -228076.9
  -65366.9   35954.5  116441.9
 -228076.9  116441.9  402799.0
  
