 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ri  -an     17.908 -107.017  4.3650
  
 covariance matrix (rad2/m.y.2 e-10
   23797.4   77764.3  -28273.8
   77764.3  257347.0  -93825.9
  -28273.8  -93825.9   35246.8
  
