 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 NB  -ri    -25.168   78.853  5.1155
  
 covariance matrix (rad2/m.y.2 e-10
   25124.4   77386.2  -28397.3
   77386.2  258158.6  -94194.8
  -28397.3  -94194.8   36746.6
  
