 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 xx  -ca    -35.196   87.376  0.2862
  
 covariance matrix (rad2/m.y.2 e-10
     105.6    -136.5      12.2
    -136.5     485.0     -40.8
      12.2     -40.8     164.9
  
