 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ND  -xx     17.733 -122.682  0.1162
  
 covariance matrix (rad2/m.y.2 e-10
    1676.5      51.8     -63.3
      51.8    2240.8     159.5
     -63.3     159.5    1825.1
  
