\begin{table}%t1 \caption{\label{data}Summary of the \hst/\wfpc\ observations \psr, with their pivot wavelength $\lambda$ and bandwidth $\Delta \lambda$ in \AA, and the total integration time $T$ in seconds. } \par \small%\centering \par \begin{tabular}{llcr} \hline \hline\noalign{\smallskip} Date & Filter & $\lambda$ ($\Delta \lambda$) & $T$ \\ yyyy-mm-dd & & (\AA) & (s) \\ \hline 2007-06-21 & {\it F336W} & $3359$ ($204$) & 780 \\ & {\it F450W} & $4557$ ($404$) & 780 \\ & {\it F555W} & $5442$ ($522$) & 300 \\ & {\it F675W} & $6717$ ($368$) & 420 \\ & {\it F814W} & $7995$ ($646$) & 600 \\ & {\it F606W/POLQ} & $6038$ ($651$) & 1800 \\ 2007-07-26 & {\it F606W/POLQ} & ... & 1800 \\ 2007-09-25 & {\it F606W/POLQ} & ... &1800 \\ 2007-11-05 & {\it F606W/POLQ} & ... &1800 \\ \noalign{\smallskip} 2005-11-15 & {\it F555W} & ... & 480 \\ &{\it F547M} & $5483$ ($205$) & 1040 \\ \noalign{\smallskip} 1999-10-17 & {\it F336W}\tablefootmark{*} & ... & 600 \\ & {\it F791W}\tablefootmark{*} & $7872$ ($519$) & 400 \\ & {\it F547M}\tablefootmark{*} & ... & 800 \\ & {\it F502N} & $5012$ ($27$) & 11~000 \\ & {\it F673N} & $6732$ ($47$) & 8200 \\ \noalign{\smallskip} 1995-10-19 & {\it F555W}\tablefootmark{*} & ... & 600 \\ & {\it F656N} & $6564$ ($22$) & 3400 \\ & {\it F658N}\tablefootmark{*} & $6591$ ($29$) & 4000 \\ \hline \end{tabular} \tablefoot{\tablefoottext{*}{Observations used by Serafimovich et~al. (\cite{Serafimovich2004}).}} \vspace*{4mm} \end{table}