 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ri  -sa     21.196 -107.152  4.4570
  
 covariance matrix (rad2/m.y.2 e-10
   23746.3   77671.3  -28352.1
   77671.3  257479.9  -93569.7
  -28352.1  -93569.7   35721.0
  
