 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 JZ  -co     31.677   69.929 22.9394
  
 covariance matrix (rad2/m.y.2 e-10
    6176.0     993.2    -775.2
     993.2    8009.8   -1229.5
    -775.2   -1229.5    6084.6
  
