 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sw  -PM    -36.299  -23.598  1.4266
  
 covariance matrix (rad2/m.y.2 e-10
  132340.0  -65972.2 -228124.2
  -65972.2   39394.8  116506.8
 -228124.2  116506.8  404794.8
  
