 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 GP  -xx      2.529   81.181  5.4868
  
 covariance matrix (rad2/m.y.2 e-10
    1684.8     305.3    -117.4
     305.3    3084.4    -429.7
    -117.4    -429.7    1879.3
  
