\begin{table}%T3 \caption[]{\label{tab:1988_wd_vh} WD solutions from the 1988 light curve observations (261 per band). See Table~\ref{tab:1987_wd_vh}. } \begin{tabular}{lrrrr} \hline \hline\noalign{\smallskip} & $y$ & $b$ & $v$ & $u$\\ \hline\noalign{\smallskip} $i$ \, (\degr) & 89.56 & 89.55 & 89.56 & 89.40\vspace{-0.8mm}\\ & $\pm $3 & $\pm $3 & $\pm $3 & $\pm $2\\ $\Omega_{\rm p}$ & 14.495 & 14.470 & 14.455 & 14.477\vspace{-0.8mm}\\ & $\pm$23 & $\pm$20 & $\pm$25 & $\pm$27\\ $\Omega_{\rm s}$ & 14.656 & 14.639 & 14.707 & 14.623\vspace{-0.8mm}\\ & $\pm$27 & $\pm$25 & $\pm$14 & $\pm$19\\ $r_{\rm p}$ & 0.0738 & 0.0739 & 0.0740 & 0.0739\\ $r_{\rm s}$ & 0.0604 & 0.0605 & 0.0602 & 0.0606\\ $k$ & 0.818 & 0.819 & 0.814 & 0.820\\ $r_{\rm p} + r_{\rm s}$ & 0.1342 & 0.1344 & 0.1342 & 0.1345\\ $T_{\rm s}$ \, (K) & 4940 & 4959 & 4897 & 4914\vspace{-0.8mm}\\ &$\pm $4 & $\pm $4 &$\pm $4 &$\pm $6\\ $L_{\rm s}/L_{\rm p}$ & 0.282 & 0.250 & 0.195 & 0.163 \\ $LO_1$ \, (\degr) & 107.9 & 118.8 & 116.5 & 122.0\vspace{-0.8mm}\\ &$\pm $1.6 & $\pm $1.2 & $\pm $1.4 & $\pm $2.6\\ $AR_1$ \, (\degr) & 25.9 & 28.7 & 31.8 & 31.1\vspace{-0.8mm}\\ &$\pm $0.4 & $\pm $0.4 & $\pm $0.4 & $\pm $0.6\\ $LO_2$ \, (\degr) & 202.4 & 212.1 & 209.9 & 214.9\vspace{-0.8mm}\\ &$\pm $1.7 & $\pm $1.6 & $\pm $1.6 & $\pm $2.4\\ $AR_2$ \, (\degr) & 25.7 & 23.8 & 28.6 & 29.9\vspace{-0.8mm}\\ &$\pm $0.6 & $\pm $0.7 & $\pm $0.7 & $\pm $0.9\\ $\sigma$ \, (mmag.) & 6.5 & 5.9 & 6.8 & 9.7 \\ \hline \end{tabular} \end{table}