 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 SB  -nb      5.464  -31.038  7.9313
  
 covariance matrix (rad2/m.y.2 e-10
    6595.1      49.1     -63.2
      49.1    7061.6      48.8
     -63.2      48.8    6710.2
  
