 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sa  -PM    -50.559   65.463  0.2679
  
 covariance matrix (rad2/m.y.2 e-10
    1874.0     -47.4     -61.7
     -47.4    3129.2     221.8
     -61.7     221.8    2138.7
  
