 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 JZ  -MN     17.171   -9.028 53.8219
  
 covariance matrix (rad2/m.y.2 e-10
    8224.3     289.4    -127.3
     289.4    9447.7    -483.9
    -127.3    -483.9    8418.7
  
