 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 NI  -BR      4.517 -171.780  3.1642
  
 covariance matrix (rad2/m.y.2 e-10
    5072.2     -75.3      94.6
     -75.3    5089.3     -57.0
      94.6     -57.0    5176.5
  
