Padé fit to magnetic field dependence  of $y_0(B)$  for a  CX1010 resistive thermometer. Here $y_0(B) = (c_0(B) - c_0(0) )/c_0(0)$ , where $c_0(B)$ is the (magnetic-field-dependent) value of the first coefficient in the Chebyshev polynomial fit of $R(T)$ in  Eq. \ref{eq:Chebyshev}