 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 SB  -sm      5.131  -30.633  7.9536
  
 covariance matrix (rad2/m.y.2 e-10
    6564.6     136.6       0.1
     136.6    7171.5      -1.3
       0.1      -1.3    6642.8
  
