\begin{table}  %t1
   \caption{\label{table1}Observations.}
        %%\centerline
\par
{
\begin{tabular}{llrllll}
\hline\hline
\noalign{\smallskip}
Name  & RA~~~  &  Dec~~~  & $W_{50}$ & \HI\ det. & Photom. & Optical\\
           & VLA       & VLA & VLA & Arecibo &  & emission \\
 & \multicolumn{2}{c}{(J2000.0)} & (km~s$^{-1}$) &  & & lines \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
ne-112  & 16 06 37.6 & 18 23 49 & 262 & yes &  &   \\
ne-142  & 16 06 22.5 & 18 00 03 & 171 & yes &  &   \\ 
ne-178  & 16 06 13.8 & 17 57 11 & 217 & yes &  &   \\ 
ne-204  & 16 06 05.9 & 18 09 20 & 125 & yes &  &   \\ 
ne-208  & 16 06 05.7 & 18 16 43 & 125 & yes &  &   \\ 
ne-240  & 16 05 58.1 & 18 24 41 & 262 & conf. &  &   \\ 
ne-250  & 16 05 52.2 & 18 27 58 & 307 & yes &  &   \\ 
ne-398  & 16 04 18.0 & 18 14 06 & 352 & weak &  &   \\  
ce-042  & 16 06 00.1 & 17 45 54 & 216: & yes & $B,V,i$ & yes \\
ce-048  & 16 05 55.7 & 17 42 39 & 171 & conf. & $B,V,i$ & yes \\  
ce-060  & 16 05 44.6 & 17 42 19 & 171 & conf. & $B,V,i$ & no \\  
ce-061 & 16 05 41.1 & 17 48 00 & 216 & conf & $B,V,i$ & yes \\  
ce-143 & 16 05 20.6 & 17 52 02 & 171 & yes & $V,i$ & yes \\ 
ce-176 & 16 05 09.9 & 17 51 20 &  171 & yes & $B,V,i$ & yes \\  
ce-200 & 16 05 06.7 & 17 47 00 &  216 & conf. & $B,V,i$ & yes \\  
sw-103 & 16 04 00.6 & 17 15 13 & 261 & yes & $B,V,i$ &    \\  
sw-194 & 16 01 07.1 & 17 20 16 & 395 & -- & $B,V,i$ &   \\  
sw-222 & 16 03 05.8 & 17 10 14 & 261 & yes & $V,i$ & yes \\
47-138  & 16 00 17.5 & 15 53 15 & 216 & -- &  &   \\ 
47-154  & 16 02 26.6 & 15 57 36 & 372 & no &  &   \\
47-166  & 16 02 16.2 & 16 04 41 &  261 & yes  &  &   \\ 
47-211  & 16 01 55.8 & 15 42 29 & 261 & yes  &  &   \\ 
\hline
\end{tabular}}
\smallskip
Arecibo \HI\ data: conf. indicates a spectrum confused by nearby galaxies,\\
-- Objects for which no sensitive spectra could be obtained (see Sect.~3.1).
\end{table}