\begin{table}%t1
%\centering
\par
\caption{\label{table1}Survey parameters for major single dish surveys of the Galactic
  21-cm line emission. GALFA-HI and EBHIS are still in progress.}
\begin{tabular}{l c c c c c}
  \hline  
  \hline
  Parameter & LAB & HIPASS-HVC & GASS &  GALFA-HI & EBHIS\\
  \hline
  Sky coverage & full sky & $\delta \la 2\deg$  & $\delta \la 1\deg$ & 
$-1\deg \la \delta \la 38\deg$ & $\delta \ga -5\deg$\\
  Average beam {\it FWHM} & 36\arcmin & 14.4\arcmin & 14.4\arcmin & 3.4\arcmin  & 9.5\arcmin \\
  LSR velocity range & $-450 < v < +400$ & $-700 < v < +1000$ &
  $-468< v < +468$ &  $-750 < v < +750$  &  $-1000 < v < +1000$\\
%  Channel separation & 1.03 \kms & 13.2 \kms & 0.82 \kms & 1.25 \kms \\
  Channel width & 1.27 \kms & 26.4 \kms & 1.0 \kms & 0.18 \kms & 1.25 \kms\\
  $1 \sigma T_{\rm B}$ noise & 90 mK &   24 mK  & 57 mK & $ \la $100 mK & $ \la $90 mK\\
%  $3 \sigma N_{\rm HI}$ Sensitivity limit for $\Delta v = 30 $ \kms & $3.2~ 10^{16} {\rm cm}^{-2}$ &  $ 0.8~ 10^{16} {\rm cm}^{-2}$ &  $1.8~ 10^{16} {\rm cm}^{-2}$ \\
  \hline
\end{tabular}
\end{table}