 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sm  -yz    -17.225  -42.815  0.1265
  
 covariance matrix (rad2/m.y.2 e-10
     235.4     156.7      30.2
     156.7     589.1     122.5
      30.2     122.5     246.4
  
