 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ps  -eu    -53.399  -17.954  1.0244
  
 covariance matrix (rad2/m.y.2 e-10
    1095.5    -910.2    -595.6
    -910.2    1656.1     718.7
    -595.6     718.7     660.5
  
