 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 SS  -SL     -9.774  124.906  1.7221
  
 covariance matrix (rad2/m.y.2 e-10
    3285.0      63.7     103.3
      63.7    3648.7     -47.6
     103.3     -47.6    3413.2
  
