\begin{table}%t2
%\centering
\par
\small\caption{Positions and velocities of the observed sources. IRDC positions are taken from Carey et~al. (1998).}\label{tab:source_list}
\begin{tabular}{lccc}
\hline\hline\noalign{\smallskip}
Source & RA(2000)& Dec(2000)    & $v_{\rm LSR}$ [km~s$^{-1}$]  \\
\hline
         &   SCAMPS     &                 &                       \\
\hline
 G8.13+0.25         & 18:02:55.69       & --21:47:46.7   & 19.4      \\
 G8.68-0.37         & 18:06:23.24       & --21:37:14.1   & 35.2/38.1 \\
 G8.71-0.37         & 18:06:26.51       & --21:35:46.6   & 38.1      \\
 G10.21-0.31        & 18:09:20.63       & --20:15:04.5   & 12.8      \\
 G10.21-0.32        & 18:09:24.52       & --20:15:41.4   & 12.8      \\
 G10.15-0.34        & 18:09:21.38       & --20:19:32.8   & 12.8      \\
 G10.61-0.33        & 18:10:15.62       & --19:54:46.6   & 74.0      \\
 G12.19-0.12        & 18:12:41.67       & --18:25:19.8   & 27.6      \\
 G13.18+0.06        & 18:14:00.92       & --17:28:41.2   & 51.6      \\
 G15.01-0.67        & 18:20:21.22       & --16:12:42.2   & 26.2      \\
 G15.03-0.65        & 18:20:18.80       & --16:11:22.6   & 26.2      \\
 G15.01-0.69        & 18:20:24.22       & --16:13:22.8   & 26.2      \\
 G18.17-0.30        & 18:25:07.53       & --13:14:32.7   & 54.9      \\
 G18.21-0.34        & 18:25:21.55       & --13:13:39.5   & 54.9      \\
 G23.41-0.23        & 18:34:45.74       & --08:34:21.2   & 104.2     \\
 G23.42-0.23        & 18:34:48.16       & --08:33:56.1   & 104.2     \\
 G23.44-0.18        & 18:34:39.25       & --08:31:36.2   & 104.2     \\
 G27.29+0.15        & 18:40:34.70       & --04:57:18.1   & 26.0      \\
 G27.31+0.18        & 18:40:32.45       & --04:55:03.8   & 26.0      \\
 G29.97-0.05        & 18:46:12.25       & --02:39:05.9   & 100     \\
 G34.81-0.28        & 18:53:20.148      & +01:28:31.5   & 59.0      \\
 G35.19-1.73        & 19:01:45.45       & +01:13:21.5   & 42.4      \\
 G81.74+0.59        & 20:39:00.37       & +42:24:36.6   & --3.1      \\
\hline
         &   IRDCs      &      &                                 \\
\hline
 G11.11-0.12 \AMM\ P1 & 18:10:34.04      & --19:21:49.0    & 29.2      \\
 G11.11-0.12 \AMM\ P3 & 18:10:07.25      & --19:27:28.0    & 29.2      \\
 G11.11-0.12 \AMM\ P4 & 18:10:07.25      & --19:28:49.0    & 29.2      \\
 G19.30+0.07 \AMM\ P1 & 18:25:58.14       & --12:04:4.9    & 26.3      \\
 G19.30+0.07 \AMM\ P2 & 18:25:52.69       & --12:04:44.9    & 26.3      \\
 G28.34+0.06 \AMM\ P1 & 18:42:50.9        & --04:03:13.9      & 78.4      \\
 G28.34+0.06 \AMM\ P2 & 18:42:52.4        & --03:59:53.9      & 78.4      \\
 G33.71-0.01    & 18:52:53.81       & +00:41:06.4    & 104.2     \\
 G79.34+0.33    & 20:32:26.20       & +40:19:40.9    & 0.1       \\
\hline
\end{tabular}
\end{table}