 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 KE  -JZ    -31.927 -104.029 20.9519
  
 covariance matrix (rad2/m.y.2 e-10
    6966.9     214.1     -32.7
     214.1    8207.4    -540.9
     -32.7    -540.9    7265.7
  
