 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ri  -ca     19.216 -108.128  4.2676
  
 covariance matrix (rad2/m.y.2 e-10
   23795.0   77512.7  -28347.9
   77512.7  258060.9  -93616.3
  -28347.9  -93616.3   35763.2
  
