#x (kpc)   v (km/s)  v_err (km/s)
 -8.27  140.38   10.18
 -5.47  152.19    7.29
 -3.84  122.16   10.68
 -3.14  111.66   10.81
 -2.45   91.00   13.24
 -1.76  124.11   17.55
 -1.06  129.76   36.88
 -0.37    0.97   14.14
  0.33   22.94   23.25
  1.02   -3.49   17.89
  1.71  -54.67   23.82
  2.41 -100.05   11.37
  3.10 -115.46    7.37
  3.79 -121.35   11.22
  4.49 -128.19    9.60
  5.18 -128.62    9.16
  5.88 -142.35    7.29
  6.57 -152.21    7.29