 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 AT  -PM     28.178   35.278  1.3023
  
 covariance matrix (rad2/m.y.2 e-10
    3476.0     -30.4     -25.7
     -30.4    4678.6     134.0
     -25.7     134.0    3669.2
  
