 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ri  -am     17.540 -106.787  4.3278
  
 covariance matrix (rad2/m.y.2 e-10
   23627.6   77174.7  -28702.7
   77174.7  257123.1  -93867.3
  -28702.7  -93867.3   35567.6
  
