 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 JZ  -NB     35.994   69.144 22.4517
  
 covariance matrix (rad2/m.y.2 e-10
    6843.5     289.4    -127.3
     289.4    8066.8    -483.9
    -127.3    -483.9    7037.9
  
