\begin{table}%t9
%\centering
\small 
\caption{Summary of the different choices made for the two
data analysis pipelines. \label{tab:differences}}
\begin{tabular}{ccc}
\hline\hline
\noalign{\smallskip}
item & IT pipeline & NA pipeline\\[-3.2mm] \\
\hline  
{cross-polar response:} & full beam (Table~\ref{tab:crosspol}, Col.~4) & axial 
(Table~\ref{tab:crosspol}, Col.~5)\\
{time response:} & in-flight, from cosmic rays (Sect.~\ref{subs:flighttransfer}) & from lab measurements (Sect.~\ref{subs:labtransfer})\\
{noise:} & estimated on the full flight &  estimated in $\sim$hour long chunks \\
{$Q$,$U$ map-making:} & all detectors treated individually & PSB pairs differences \\
{map-making solver:} & Conjugate Gradients & Jacobi \\
\hline
\end{tabular}
\end{table}