 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 SL  -xx     50.706 -143.468  0.2677
  
 covariance matrix (rad2/m.y.2 e-10
    1639.9     131.6      -0.3
     131.6    2093.6       9.7
      -0.3       9.7    1708.4
  
