 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sa  -pa     55.975  -77.029  0.6527
  
 covariance matrix (rad2/m.y.2 e-10
     123.8      64.0     -54.7
      64.0     530.0     164.0
     -54.7     164.0     267.1
  
