 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 SB  -co      3.004  -24.383  8.1787
  
 covariance matrix (rad2/m.y.2 e-10
    7360.0     703.7    -647.9
     703.7    7970.5    -745.7
    -647.9    -745.7    7074.2
  
