\begin{table}%t5 \caption{\label{tab:residuals}Satellite-satellite relative positions and O--C residuals on the impact plane as determined from our observations in equatorial J2000\protect coordinates.} %\centerline { \begin{tabular}{ccccccc} \hline\hline Date &Event & Fitted midtime & \multicolumn{2}{c}{Relative position ($\arcsec$)} & \multicolumn{2}{c}{O--C ($\arcsec$)}\\ (DDMMYY) & type & (UT) & $\Delta \alpha \cos \delta $ & $\Delta \delta$ & $\Delta \alpha \cos \delta$ & $\Delta \delta$ \\ \hline 040507 & 4O2P & $19$:$09$:$53$ & $-$0.0256 ($\pm$0.0037) & $-$0.0069 ($\pm$0.0015) & +0.0042 & +0.0181 \\ 050807 & 4O2P & $13$:$53$:$49$ & $-$0.0587 ($\pm$0.0024) & $-$0.0167 ($\pm$0.0026) & +0.0070 & +0.0003 \\ 140807 & 2O4P & $01$:$34$:$25$ & $-$0.0517 ($\pm$0.0112) & $-$0.0141 ($\pm$0.0116) & +0.0070 & $-$0.0319 \\ 220807 & 2E5T & $15$:$11$:$37^{\ast}$ & 0.0000 ($\pm$0.0031) & 0.0000 ($\pm$0.0013) & $-$0.0149 & +0.0030 \\ 240807 & 1O2P & $12$:$24$:$04$ & +0.0585 ($\pm$0.0019) & +0.0157 ($\pm$0.0041) & $-$0.0012 & +0.0097 \\ 121007 & 4E5T & $09$:$58$:$53^{\ast}$ & +0.0280 (${}^{+0.0052}_{-0.0059}$) & $-$0.0025 ($\pm$0.0005) & +0.0012 & +0.0205 \\[0.7mm] 301107 & 1E5T & $08$:$55$:$10^{\ast}$ & $-$0.0208 (${}^{+0.0036}_{-0.0033}$) & +0.0044 ($\pm$0.0008) & $-$0.0044 & +0.0244 \\ 301107 & 3E4P & $18$:$48$:$44^{\ast}$ & +0.0178 ($\pm$0.0046) & $-$0.0026 ($\pm$0.0007) & $-$0.0106 & $-$0.0046 \\ \hline \end{tabular}} \par \medskip $^{\ast}$ Midtime of the event as observed from the centre of the Sun. Earth midtimes for these events are given in Table~\ref{tab:best_fit}. \end{table}