\begin{table}%t5 \caption{\label{tab:ppsset03norm}$R_{\rm med}$ and $R_{\rm hot}$ as a function of pulse phase for the 2003 September and 2004 September observations.} %\centerline {\small \begin{tabular}{ccccc} \hline \hline & Sep. 03& Sep. 03 & Sep. 04 & Sep. 04\\ Phase bin & $R_{\rm med}$$^a$ & $R_{\rm hot}$ & $R_{\rm med}$ & $R_{\rm hot}$ \\ & km & km & km & km \\ \hline 0.0$-$0.1 & $ 5.1 \pm 0.4 $ & $ 1.19 \pm0.03 $ & $4.3 \pm0.1 $ & $ 0.750 \pm 0.001 $ \\ 0.1$-$0.2& $ 5.3 \pm 0.4 $ & $1.18 \pm0.05 $ & $ 4.6 \pm0.1 $ & $ 0.82 \pm 0.02 $ \\ 0.2$-$0.3& $ 5.8 \pm 0.5 $ & $1.31 \pm0.05 $ & $ 4.6 \pm0.1 $ & $ 0.88 \pm 0.01 $ \\ 0.3$-$0.4& $ 6.3 \pm 0.5 $ & $ 1.60 \pm0.06 $ & $ 4.6 \pm0.1 $ & $ 0.97 \pm 0.01 $ \\ 0.4$-$0.5& $ 7.2 \pm 0.5 $ & $1.92 \pm0.06 $ & $ 4.7 \pm0.1 $ & $ 0.91 \pm 0.01 $ \\ 0.5$-$0.6& $ 7.8 \pm 0.4 $ & $2.10 \pm0.06 $ & $ 4.6 \pm0.1 $ & $ 0.91 \pm 0.01 $ \\ 0.6$-$0.7& $ 7.2 \pm 0.4 $ & $ 2.10 \pm0.05 $ & $ 4.5 \pm0.1 $ & $ 0.81 \pm 0.02 $ \\ 0.7$-$0.8& $ 6.7 \pm 0.4 $ & $1.89 \pm0.04 $ & $4.3 \pm0.1 $ & $ 0.83 \pm 0.02 $ \\ 0.8$-$0.9& $ 6.3 \pm 0.4 $ & $ 1.55 \pm0.03 $ & $4.1 \pm0.1 $ & $0.65 \pm 0.02 $ \\ 0.9$-$0.1& $ 6.0 \pm 0.3 $ & $1.27 \pm0.04 $ & $4.2 \pm0.1 $ & $ 0.77 \pm 0.02 $ \\ \hline \end{tabular}} \medskip $^a$~Temperatures are kept fixed at the value listed in Table~\ref{tab:3bbtot}. 1$\sigma$ confidence level uncertainties are given. The corresponding $\chi^2_{\rm red}$ are~0.92 (for 852~d.o.f.) and~1.01 (1132~d.o.f.) for September 2003 and~2004, respectively. \end{table}