 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 GP  -ar     -1.866   85.018  5.4946
  
 covariance matrix (rad2/m.y.2 e-10
    1905.1     530.7     -15.7
     530.7    3916.2    -399.9
     -15.7    -399.9    2057.0
  
