 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 nz  -ND     50.827  -94.905  0.6024
  
 covariance matrix (rad2/m.y.2 e-10
    1775.0     353.5    -182.0
     353.5    3404.6    -319.9
    -182.0    -319.9    2112.8
  
