 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 BS  -GP     -4.444 -122.866  3.9526
  
 covariance matrix (rad2/m.y.2 e-10
    3394.4      18.3     -77.5
      18.3    5385.4    -353.4
     -77.5    -353.4    3672.5
  
