 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sa  -nz    -54.852   82.016  0.6657
  
 covariance matrix (rad2/m.y.2 e-10
     136.1     106.1    -232.5
     106.1     357.2    -164.5
    -232.5    -164.5     742.8
  
