 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sr  -co    -31.487   54.504  1.1491
  
 covariance matrix (rad2/m.y.2 e-10
    2001.4    -109.2   -2780.3
    -109.2    1027.7      92.0
   -2780.3      92.0    4120.7
  
