 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sa  -eu    -77.150   86.922  0.2150
  
 covariance matrix (rad2/m.y.2 e-10
      83.4     -34.1      22.0
     -34.1      22.2     -15.0
      22.0     -15.0      39.3
  
