 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 NI  -TI     -0.808 -141.609  3.2562
  
 covariance matrix (rad2/m.y.2 e-10
    6110.2    -346.4     144.3
    -346.4    6895.0      73.4
     144.3      73.4    6298.2
  
