 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 nz  -in      7.556 -134.111  0.6356
  
 covariance matrix (rad2/m.y.2 e-10
     162.3     217.6    -114.6
     217.6     608.0      61.6
    -114.6      61.6     374.3
  
