 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ri  -sm     17.900 -108.480  4.2615
  
 covariance matrix (rad2/m.y.2 e-10
   23727.9   77769.4  -28330.0
   77769.4  257656.3  -93756.1
  -28330.0  -93756.1   35364.7
  
