 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 PM  -MS      0.525  127.744  3.4265
  
 covariance matrix (rad2/m.y.2 e-10
    3493.4    -382.5      42.8
    -382.5    5110.0     188.2
      42.8     188.2    3698.4
  
