\begin{table}%t8 \par \caption{\label{tab:tnoise_gain_lin_results}Best-fit non-linear model parameters.}. %\centering \par { \begin{tabular}{cccccc} \par \hline \hline Rec. ID & Param. & M-00 & M-01 & S-10 & S-11 \\ \hline & $b$ & $\ldots$ & $\ldots$ & $\la $$10^{-3}$ & $\la $$10^{-3}$ \\ \textbf{LFI18} & $G_0$ (V/K) & $\ldots$ & $\ldots$ & 0.026 & 0.022 \\ \vspace{.2cm} & $T_{\rm noise}$ (K) & $\ldots$ & $\ldots$ & 37.4 & 40.5 \\ \par & $b$ & $\la$$ 10^{-3}$ & $\la $$10^{-3}$ & $\la $$10^{-3}$ & $\la$$ 10^{-3}$ \\ \textbf{LFI19} & $G_0$ (V/K) & 0.020 & 0.021 & 0.016 & 0.018 \\ \vspace{.2cm} & $T_{\rm noise}$ (K) & 39.8 & 38.7 & 37.5 & 40.0 \\ \par & $b$ & $\la $$10^{-3}$ & $\la $$10^{-3}$ & $\la $$10^{-3}$ & $\la$$ 10^{-3}$ \\ \textbf{LFI20} & $G_0$ (V/K) & 0.019 & 0.018 & 0.025 & 0.025 \\ \vspace{.2cm} & $T_{\rm noise}$ (K) & 42.3 & 42.2 & 43.9 & 43.0 \\ \par & $b$ & $\la $$10^{-3}$ & $\la $$10^{-3}$ & $\la$$ 10^{-3}$ & $\la$$ 10^{-3}$ \\ \textbf{LFI21} & $G_0$ (V/K) & 0.025 & 0.023 & 0.016 & 0.014 \\ \vspace{.2cm} & $T_{\rm noise}$ (K) & 31.9 & 34.6 & 43.3 & 45.9 \\ \par & $b$ & $\la$$ 10^{-3}$ & $\la$$ 10^{-3}$ & $\la $$10^{-3}$ & $\la$$ 10^{-3}$ \\ \textbf{LFI22} & $G_0$ (V/K) & 0.011 & 0.012 & 0.014 & 0.016 \\ \vspace{.2cm} & $T_{\rm noise}$ (K) & 40.5 & 38.9 & 40.8 & 43.5 \\ \par & $b$ & $\la $$10^{-3}$ & $\la $$10^{-3}$ & $\la$$ 10^{-3}$ & $\la$$ 10^{-3}$ \\ \textbf{LFI23} & $G_0$ (V/K) & 0.025 & 0.029 & 0.014 & 0.007 \\ \vspace{.2cm} & $T_{\rm noise}$ (K) & 40.6 & 39.2 & 50.3 & 54.2 \\ \par & $b$ & $\ldots$ & $\ldots$ & 1.43 & 1.43 \\ \textbf{LFI24} & $G_0$ (V/K) & $\ldots$ & $\ldots$ & 0.005 & 0.005 \\ \vspace{.2cm} & $T_{\rm noise}$ (K) & $\ldots$ & $\ldots$ & 19.7 & 19.9 \\ \par & $b$ & 1.21 & 1.16 & 0.79 & 1.00 \\ \textbf{LFI25} & $G_0$ (V/K) & 0.008 & 0.008 & 0.007 & 0.007 \\ \vspace{.2cm} & $T_{\rm noise}$ (K) & 19.7 & 19.7 & 20.5 & 20.2 \\ \par & $b$ & 1.07 & 1.40 & 0.93 & 1.21 \\ \textbf{LFI26} & $G_0$ (V/K) & 0.005 & 0.006 & 0.007 & 0.007\\ \vspace{.2cm} & $T_{\rm noise}$ (K) & 20.2 & 19.1 & 18.5 & 18.1 \\ \par & $b$ &0.12 & 0.12 & 0.12 & 0.14 \\ \textbf{LFI27} & $G_0$ (V/K) & 0.074 & 0.081 & 0.070 & 0.058 \\ \vspace{.2cm} & $T_{\rm noise}$ (K) & 13.3 & 13.1 & 14.3 & 13.7 \\ \par & $b$ & 0.19 & 0.16 & 0.19 & 0.19 \\ \textbf{LFI28} & $G_0$ (V/K) & 0.076 & 0.103 & 0.071 & 0.061 \\ & $T_{\rm noise}$ (K) & 11.7 & 11.3 & 10.9 & 10.8 \\ \hline \end{tabular}} \par \tablefoot {Best-fit parameters have been obtained from the non-linear fit to data acquired during instrument-level tests. The linearity factor was obtained by constraining it to be $\pm $1\% around the value found during calibration of individual receivers \citep[see][]{2009_LFI_cal_R4}.} \end{table}