 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 NB  -SL    -52.442  111.908  1.0256
  
 covariance matrix (rad2/m.y.2 e-10
    3161.6     138.9       8.7
     138.9    3508.1       9.5
       8.7       9.5    3185.4
  
