 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 NB  -ps      2.299  138.367  1.2170
  
 covariance matrix (rad2/m.y.2 e-10
    2449.5    -991.2    -576.9
    -991.2    2656.5     642.4
    -576.9     642.4    1942.7
  
