 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 nz  -jf     42.027 -112.570  1.6313
  
 covariance matrix (rad2/m.y.2 e-10
   10554.8   14055.5  -15971.5
   14055.5   19473.4  -21139.1
  -15971.5  -21139.1   25611.1
  
