def PNT2Tidal_Tv12(XA):
  """ TaylorT2 1PN Quadrupolar Tidal Coefficient, v^12 Timing Term. 
   XA = mass fraction of object """

  XATo2nd = XA*XA
  XATo3rd = XATo2nd*XA
  return (3179)/(4)-(919*XA)/(4)-(1143*XATo2nd)/(2) + 65*XATo3rd