 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sa  -sr     56.250 -125.977  0.0189
  
 covariance matrix (rad2/m.y.2 e-10
    1640.7    -189.6   -2323.8
    -189.6      65.1     292.5
   -2323.8     292.5    3382.7
  
