 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 pa  -JZ    -35.773 -109.887 22.5322
  
 covariance matrix (rad2/m.y.2 e-10
    5303.6     289.4    -127.3
     289.4    6526.9    -483.9
    -127.3    -483.9    5498.0
  
