 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ri  -nz     15.775 -108.078  3.9255
  
 covariance matrix (rad2/m.y.2 e-10
   23858.7   78068.8  -28509.7
   78068.8  258480.6  -94142.8
  -28509.7  -94142.8   34920.7
  
