 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 BU  -jf      7.122  -88.288  2.8382
  
 covariance matrix (rad2/m.y.2 e-10
   11883.1   12793.0  -15592.7
   12793.0   19913.3  -20656.2
  -15592.7  -20656.2   27401.1
  
