 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 SS  -su    -10.471  125.851  1.8899
  
 covariance matrix (rad2/m.y.2 e-10
    1866.6    -346.4     144.3
    -346.4    2651.4      73.4
     144.3      73.4    2054.6
  
