 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 PM  -yz    -47.780 -110.481  0.1785
  
 covariance matrix (rad2/m.y.2 e-10
    1914.3    -266.4      38.7
    -266.4    2905.9     102.6
      38.7     102.6    2167.0
  
