 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sw  -co    -38.155    6.430  1.9782
  
 covariance matrix (rad2/m.y.2 e-10
  132313.4  -65826.1 -229232.3
  -65826.1   36542.1  116494.9
 -229232.3  116494.9  403616.7
  
