 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 BU  -sw     16.010 -108.440  1.6017
  
 covariance matrix (rad2/m.y.2 e-10
  132332.9  -66131.9 -228067.5
  -66131.9   39306.5  116579.5
 -228067.5  116579.5  404750.0
  
