 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 su  -am     -3.488  -62.341  0.1161
  
 covariance matrix (rad2/m.y.2 e-10
     165.1    -330.6    -212.3
    -330.6    1089.6     495.5
    -212.3     495.5     459.5
  
