\begin{table}%t1
\caption{\label{tab1}X-ray lines detected in the RGS spectrum of BP~Tau, line counts
and photon fluxes in units of $10^{-6}$~ph~s$^{-1}$~cm$^{-2}$. }
%\centering
\par
\begin{tabular}{llrrrr}
\hline\hline
Line ID & $\lambda$ (\AA)  & Counts & Error & Instr. & Flux \\
\hline
Ne~{\sc x} Ly$_\alpha$ & 12.14  & 91.5 & 11.7 & RGS2 & 13.2 \\ 
Ne~{\sc ix} He r & 13.46 & 37.0 & 9.9 & RGS2 & 5.2\\  
Ne~{\sc ix} He i & 13.56 & 31.2 & 9.8 & RGS2 & 4.4\\ 
Ne~{\sc ix} He f & 13.71 & 12.5 & 7.1 & RGS2 & 1.7\\ 
O~{\sc viii} Ly$_\beta$ & 16.03 & 25.8 & 6.4 & RGS1 & 4.1 \\ 
O~{\sc viii} Ly$_\beta$ & 16.00 & 16.7 & 6.2 & RGS2 & 2.3\\ 
O~{\sc viii} Ly$_\alpha$ & 18.97 & 95.5 & 11.4 & RGS2 & 14.2\\  
O~{\sc vii} He r & 21.6 & 47.7 & 8.6 & RGS1 & 8.9\\  
O~{\sc vii} He i & 21.8 & 36.6 & 7.8 & RGS1 & 7.1\\ 
O~{\sc vii} He f & 22.1 & 13.7 & 5.5 & RGS1 & 2.7\\ 
Fe~{\sc xvii}  & 15.03 & $<$20&  & RGS1 & $<$2.9 \\
\hline
\end{tabular}
\end{table}