\begin{table}%t7
 \caption{\label{table:sbl}Stdev of contributions to signal baselines.}
 %\centering
\small
 \begin{tabular}{cccccc}
 \hline\hline
 $\tbase$ & Eq.~(\ref{sigma_sb_approx}) & $\bR\bZ\bs$ &
 $(\bA-\bR\bZ)\bs$ & $\bA\bs$ &  $\bA\bs$ (G) \\
            & ($\mu$K) & ($\mu$K) & ($\mu$K) & ($\mu$K) & ($\mu$K) \\
 \hline
 \multicolumn{6}{c}{temperature stream $(a+b)/2$} \\
 2.5 s  & 0.962 & 0.972 & 0.672 & 1.297 & \ldots \\
 5 s    & 0.680 & 0.686 & 0.300 & 0.831 & \ldots \\
 15 s   & 0.393 & 0.396 & 0.121 & 0.461 & \ldots \\
 1 min  & 0.196 & 0.200 & 0.075 & 0.248 & 0.243 \\
 1 h    &       & 0.136 & 0.075 & 0.199 & 0.196 \\
 \hline
 \multicolumn{6}{c}{polarization stream $(a-b)/2$} \\
 2.5 s  & 0.0564 & 0.0560 & 0.0277 & 0.0701 & \ldots \\
 5 s    & 0.0399 & 0.0396 & 0.0145 & 0.0476 & \ldots \\
 15 s   & 0.0230 & 0.0229 & 0.0068 & 0.0269 & \ldots \\
 1 min  & 0.0115 & 0.0115 & 0.0043 & 0.0144 & 0.0147 \\
 1 h    &        & 0.0083 & 0.0043 & 0.0120 & 0.0124 \\
 \hline
 \end{tabular}
\end{table}