\begin{table}%t1
\caption{Radial velocities of \object{R~Aqr} used for orbital elements determination.}             
\label{table:1}      
%\centering
\par
\begin{tabular}{l c c c c  }
\hline\hline                 
JD & RV $[\rm km~s^{-1}]$ & Spectral range & Symbol & References \\   
\hline
  2~422~255 &   --21.6 & Visual & $\LEFTcircle$ & Merrill (\cite{merrill1}) \\
  2~423~039 &   --22.0 & Visual & $\LEFTcircle$ & Merrill (\cite{merrill1}) \\
  2~429~581 &   --30.7 & Visual &$\RIGHTcircle$ & Merrill (\cite{merrill2}) \\    
  2~430~336 &   --30.2 & Visual &$\RIGHTcircle$ & Merrill (\cite{merrill2}) \\
  2~432~235.5 & --28.5 & Visual &$\RIGHTcircle$ & Merrill (\cite{merrill2}) \\
  2~433~019.3 & --29.0 & Visual &$\RIGHTcircle$ & Merrill (\cite{merrill2}) \\
  2~441~237 &   --21.7 & Visual &  $\medbullet$ & Jacobsen \& Wallerstein (\cite{jacobsen}) \\
  2~442~939 &   --22.0 & Near-IR & $\divideontimes$ & Hinkle et~al. (\cite{hinkle}) \\
  2~443~527.5 & --26.6 & $v=1, J=$ 1--0 & $+$ & Lepine et~al. (\cite{lepine}), Zuckerman (\cite{zuckerman}) \\
  2~444~078 &   --25.9 & $v=1, J=$ 1--0 & $\blacksquare$& Cohen \& Ghigo (\cite{cohen}), Spencer et~al. (\cite{spencer}), Lane (\cite{lane}) \\
  2~444~356 &   --27.0 & $v=1, J=$ 1--0 & $\times$ & Lane (\cite{lane}) \\
  2~444~509 &   --25.6 & Visual &   $\medcirc$ & Wallerstein (\cite{wallerstein}) \\
  2~444~748 &   --30.1 & Visual &   $\medcirc$ & Wallerstein (\cite{wallerstein}) \\
  2~445~535 &   --27.7 & Near-IR & $\divideontimes$ & Hinkle et~al. (\cite{hinkle}) \\
  2~445~574.5 & --27.6 & $v=1, J=$ 1--0 & $\blacktriangle$ & Cho et~al. (\cite{cho}), Jewell et~al. (\cite{jewell}) \\
  2~445~862 &   --30.1 & Visual &   $\medcirc$ & Wallerstein (\cite{wallerstein}) \\
  2~445~890.6 & --28.0 & Near-IR & $\divideontimes$ & Hinkle et~al. (\cite{hinkle}) \\
  2~446~378.5 & --27.8 & Near-IR & $\divideontimes$ & Hinkle et~al. (\cite{hinkle}) \\
  2~447~247 &   --28.5 & $v=1, J=$ 1--0 & $\triangle$ & Martinez et~al. (\cite{martinez}) \\
  2~447~338 &   --28.9 & Near-IR & $\divideontimes$ & Hinkle et~al. (\cite{hinkle}) \\
  2~447~634 &   --28.5 & $v=1, J=$ 1--0 & $\triangle$ & Martinez et~al. (\cite{martinez}) \\
  2~447~870 &   --27.1 & $v=1, J=$ 1--0 & $\blacktriangledown$ & Pardo et~al. (\cite{pardo}) \\
  2~448~240 &   --27.0 & $v=1, J=$ 2--1 & $\vardiamondsuit$ & Schwarz et~al. (\cite{schwarz}) \\
  2~448~283 &   --28.3 & $v=1, J=$ 1--0 & $\blacktriangledown$ & Pardo et~al. (\cite{pardo}) \\
  2~448~696 &   --27.4 & $v=1, J=$ 1--0 & $\blacktriangledown$ & Pardo et~al. (\cite{pardo}) \\
  2~448~998.4 & --26.4 & $v=1, J=$ 2--1 & $\vardiamondsuit$ & Schwarz et~al. (\cite{schwarz}) \\
  2~449~435 &   --27.0 & $v=1, J=$ 1--0 & $\blacktriangledown$ & Pardo et~al. (\cite{pardo}) \\
  2~449~439 &   --26.3 & $v=1, J=$ 2--1 & $\vardiamondsuit$ & Schwarz et~al. (\cite{schwarz}) \\
  2~449~804 &   --27.0 & $v=1, J=$ 1--0 & $\blacktriangledown$ & Pardo et~al. (\cite{pardo}) \\
  2~450~068.8 & --26.8 & $v=1, J=$ 1--0 & $\diamondsuit$ & Boboltz et~al. (\cite{boboltz}) \\
  2~450~407 &   --24.0 & $v=1, J=$ 1--0 & $\Square$ & Hollis et~al. (\cite{hollis}) \\
  2~450~948 &   --24.0 & $v=1, J=$ 1--0 & $\Square$ & Hollis et~al. (\cite{hollis}) \\
  2~451~390.4 & --25.6 & $v=1, J=$ 2--1 & $\pentagon$ & Kang et~al. (\cite{kang}), Hollis et~al. (\cite{hollis}) \\
  2~451~785.8 & --23.2 & $v=1, J=$ 2--1 & $\davidsstar$ & Kang et~al. (\cite{kang}) \\
  2~451~892 &   --24.3 & $v=1, J=$ 1--0 & $\oplus$ & Hollis et~al. (\cite{hollis4}), Cotton et~al. (\cite{cotton1}), McIntosh \& Rustan (\cite{mcintosh}) \\
  2~453~253 &   --23.0 & $v=1, J=$ 1--0 & $\XBox$ & Cotton et~al. (\cite{cotton2}) \\
  2~453~784.3 & --22.7 & $v=1, J=$ 1--0 & $\triangledown$ & McIntosh \& Rustan (\cite{mcintosh}) \\
  2~454~112 &   --22.8 & $v=1, J=$ 1--0 & $\triangledown$ & McIntosh \& Rustan (\cite{mcintosh}) \\
\hline                                   
\end{tabular}
\end{table}