#x (kpc)   v (km/s)  v_err (km/s)
 -6.10  102.25   10.37
 -4.62   82.04   10.37
 -3.99   72.99   10.37
 -3.37   62.53   10.37
 -2.74   53.83   10.37
 -2.12   30.04   10.37
 -1.49   27.67   10.37
 -0.87   26.15   10.37
 -0.24   17.92   10.37
  0.39    0.84   10.37
  1.01   -5.26   10.37
  1.64  -24.90   10.37
  2.26  -31.76   10.37
  2.89  -41.22   10.37
  3.81  -66.08   10.37
  4.77  -75.76   10.37
  5.39  -85.39   10.37
  6.35 -104.21   10.37
  7.55 -117.84   10.37