\begin{table}%t1
\caption{\label{tab:h2o_obs}H$_2$O and H$_2^{18}$O emission\tablefootmark{a} in the NGC~1333 sources\tablefootmark{b}.}
\par
\scriptsize
%\centering
\par
\begin{tabular}{l r c c c c @{} c c}
\hline \hline \noalign{\smallskip}
       &            &      & \multicolumn{2}{c}{Medium} & & \multicolumn{2}{c}{Broad} \vspace{1pt}\\ Source & Transition & rms\tablefootmark{c}  & $T_{\rm MB}^{\rm peak}$ & $\int T_{\rm MB}~{\rm d}\varv$ & & $T_{\rm MB}^{\rm peak}$ & $\int T_{\rm MB}~{\rm d}\varv$ \\
       &            & (mK) & (K) & (K~km~s$^{-1}$) & & (K) & (K~km~s$^{-1}$) \\
\hline
IRAS 2A  & H$_2$O 1$_{11}$--0$_{00}$ & 22 & 0.22 & 2.7 & & 0.10 & 4.1 \\
        &        2$_{02}$--1$_{11}$ & 25 & 0.25 & 2.5 & & 0.12 & 5.6 \\
        &        2$_{11}$--2$_{02}$ & 23 & 0.16 & 1.9 & & 0.06 & 2.7 \\
        &        3$_{12}$--3$_{03}$ & 79 & 0.14 & 1.5 & & 0.06 & 2.7 \\
        &        3$_{12}$--2$_{21}$ & 52 & 0.13 & 1.5 & & 0.08 & 3.8 \\
        & H$_2^{18}$O 1$_{10}$--1$_{01}$ &  2 & \ldots & $<$0.01 & &   0.01 & 0.14 \\
        &             1$_{11}$--0$_{00}$ & 22 & \ldots & $<$0.07 & & \ldots & $<$0.12 \\
        &             2$_{02}$--1$_{11}$ & 12 & \ldots & $<$0.04 & & \ldots & $<$0.06 \\
        &             3$_{12}$--3$_{03}$ & 19 & \ldots & $<$0.06 & & \ldots & $<$0.10 \\
\multicolumn{3}{l}{{\it FWHM}\tablefootmark{d} (km~s$^{-1}$)} & \multicolumn{2}{c}{10.7 $\pm$ 0.8} & & \multicolumn{2}{c}{42 $\pm$ 3} \\
\multicolumn{3}{l}{$\varv_{\rm LSR}$\tablefootmark{d} (km~s$^{-1}$)} & \multicolumn{2}{c}{$+$10.7 $\pm$ 0.8} & & \multicolumn{2}{c}{$-$2.3 $\pm$ 3.4} \\ \hline
IRAS 4A & H$_2$O 1$_{11}$--0$_{00}$ &  23 & 0.36 & 4.9 & & 0.35 & 15.3 \\
       &        2$_{02}$--1$_{11}$ &  24 & 0.34 & 3.8 & & 0.45 & 18.0 \\
       &        2$_{11}$--2$_{02}$ &  23 & 0.14 & 0.8 & & 0.43 & 14.0 \\
       &        3$_{12}$--2$_{21}$ & 100 & 0.07 & 0.4 & & 0.32 & 13.6 \\
       & H$_2^{18}$O 1$_{10}$--1$_{01}$ &  3 & \ldots & $<$0.01 & &   0.02 & 0.43 \\
       &             1$_{11}$--0$_{00}$ & 23 & \ldots & $<$0.06 & & \ldots & $<$0.09 \\
\multicolumn{3}{l}{{\it FWHM}\tablefootmark{d} (km~s$^{-1}$)} & \multicolumn{2}{c}{11.1 $\pm$ 2.3} & & \multicolumn{2}{c}{37 $\pm$ 4} \\
\multicolumn{3}{l}{$\varv_{\rm LSR}$\tablefootmark{d} (km~s$^{-1}$)} & \multicolumn{2}{c}{$-$0.6 $\pm$ 0.5} & & \multicolumn{2}{c}{$+$8.7 $\pm$ 1.0} \\ \hline
IRAS 4B & H$_2$O 1$_{11}$--0$_{00}$ &  29 &  1.1 &  5.1 & & 0.54 & 14.0 \\
       &        2$_{02}$--1$_{11}$ &  23 & 0.63 &  3.5 & & 0.65 & 17.6 \\
       &        2$_{11}$--2$_{02}$ &  17 & 0.37 &  1.8 & & 0.40 & 10.2 \\
       &        3$_{12}$--2$_{21}$ & 150 & 0.32 &  1.3 & & 0.76 & 17.5 \\
       & H$_2^{18}$O 1$_{10}$--1$_{01}$ &  3 & \ldots & $<$0.01 & &   0.02 & 0.43 \\
       &             1$_{11}$--0$_{00}$ & 16 & \ldots & $<$0.03 & & \ldots & $<$0.04 \\
\multicolumn{3}{l}{{\it FWHM}\tablefootmark{d} (km~s$^{-1}$)} & \multicolumn{2}{c}{4.6 $\pm$ 0.5} & & \multicolumn{2}{c}{24 $\pm$ 2} \\
\multicolumn{3}{l}{$\varv_{\rm LSR}$\tablefootmark{d} (km~s$^{-1}$)} & \multicolumn{2}{c}{$+$8.1 $\pm$ 0.3} & & \multicolumn{2}{c}{$+$8.0 $\pm$ 0.5} \\
\hline
\end{tabular}\vspace*{-2mm}
\tablefoot {\tablefoottext{a}{Obtained from Gaussian fits to each component. In the case of H$_2$O~1$_{11}$$-$0$_{00}$, this includes extrapolation over the absorption feature.}
\tablefoottext{b}{The coordinates used are for IRAS2A: 03:28:55.6; +31:14:37.1, IRAS4A: 03:29:10.5; +31:13:30.9, IRAS4B: +03:29:12.0; +31:13:08.1 (J2000).}
\tablefoottext{d}{Measured in 0.5 km~s$^{-1}$ bins.}
\tablefoottext{e}{Intensity-weighted average of values determined from Gaussian fits of H$_2^{16}$O emission lines. Uncertainties include statistical errors only.}}\vspace{-2mm}
\end{table}