 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 GP  -jf      9.845   84.401  4.8644
  
 covariance matrix (rad2/m.y.2 e-10
   11791.2   13353.6  -15769.7
   13353.6   20277.1  -21270.5
  -15769.7  -21270.5   27420.0
  
