 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ON  -sa     36.405  135.308  2.5924
  
 covariance matrix (rad2/m.y.2 e-10
    1827.8     -90.9      -9.1
     -90.9    2376.7     208.8
      -9.1     208.8    2102.4
  
