#x (kpc)   v (km/s)  v_err (km/s)
 -5.00 -105.25    9.37
 -1.62  -40.02    9.37
  0.20   10.35   10.08
  0.95    3.70   10.62
  2.06   20.84   12.10
  3.56   54.20    9.37
  5.08  104.58    9.37
  6.59  129.53   13.61
  9.44  140.42   12.97
 -8.03 -112.17    9.37
-10.97 -127.63   12.12