             kx            ky             vx            vy           tau
0  1.409372e+10  8.117810e+09 -320746.304348  2.432564e-11  1.000000e-13
1  1.409308e+10  8.191142e+09 -320777.706128 -5.637049e+03  1.000000e-13
2  1.409114e+10  8.264448e+09 -320871.623008 -1.127203e+04  1.000000e-13
n = 9.077e+27 m⁻³, R_H(10 T) = 6.661e-10 m³/C
