 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sw  -au    -41.674  -62.765  1.5514
  
 covariance matrix (rad2/m.y.2 e-10
  130367.0  -65510.8 -228151.5
  -65510.8   36353.0  116544.1
 -228151.5  116544.1  402987.4
  
