 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sa  -JZ    -34.195 -109.276 22.4743
  
 covariance matrix (rad2/m.y.2 e-10
    5427.4     353.5    -182.0
     353.5    7057.0    -319.9
    -182.0    -319.9    5765.1
  
