 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 NI  -sm     -7.727 -178.264  3.3456
  
 covariance matrix (rad2/m.y.2 e-10
    3609.2      61.3      94.7
      61.3    4233.3     -58.3
      94.7     -58.3    3791.8
  
