 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 jf  -su    -41.842   65.564  1.2711
  
 covariance matrix (rad2/m.y.2 e-10
   10034.4   12821.5  -15793.5
   12821.5   18520.1  -20672.5
  -15793.5  -20672.5   25738.9
  
