 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 GP  -sm     -0.178   81.723  5.6933
  
 covariance matrix (rad2/m.y.2 e-10
    1728.2     426.0    -127.2
     426.0    3558.4    -485.2
    -127.2    -485.2    2000.8
  
