 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 co  -ar      5.460 -139.387  1.2775
  
 covariance matrix (rad2/m.y.2 e-10
    1026.1     140.5    -503.6
     140.5    1226.2      27.3
    -503.6      27.3     708.1
  
