 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 ps  -ca    -55.741   -9.808  0.9918
  
 covariance matrix (rad2/m.y.2 e-10
    1119.9   -1102.6    -583.8
   -1102.6    2175.9     700.2
    -583.8     700.2     734.6
  
