 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 su  -MN      3.949  -29.951 51.6768
  
 covariance matrix (rad2/m.y.2 e-10
    3124.0    -271.1      49.7
    -271.1    3891.7     130.4
      49.7     130.4    3207.6
  
