 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sm  -na     86.343 -136.867  0.2780
  
 covariance matrix (rad2/m.y.2 e-10
     123.1     -20.7     -24.0
     -20.7     103.8       7.4
     -24.0       7.4     117.9
  
