 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 AT  -JZ    -33.509 -107.187 21.3904
  
 covariance matrix (rad2/m.y.2 e-10
    7029.4     370.4    -146.0
     370.4    8606.3    -407.6
    -146.0    -407.6    7295.6
  
