 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 SS  -xx     -2.868  130.624  1.7029
  
 covariance matrix (rad2/m.y.2 e-10
    1697.5     -45.3      88.1
     -45.3    1911.7     -55.8
      88.1     -55.8    1807.4
  
