\begin{table}%t1
%\centering
\par
  \caption{Photometric observations.\label{tab:observations}}
  $$
  \begin{tabular}{lr@{~}r@{~}rr@{:}lrrrrrl}
    \hline
    \hline
    Site      &  \multicolumn{5}{l}{Start time [UT]} &
    Length[h]&Frames&Epoch&Minimum [HJD]& O$-$C & \hfill Comments\\
    \hline
    SARA      & 2001 & Dec. & 06 & 05&01 & 7.1  & 857 & &&&\hfill used for profile\\
    SARA      & 2001 & Dec. & 07 & 03&14 & 5.5  & 664 & &&&\hfill used for profile\\
    SARA      & 2001 & Dec. & 07 & 10&14 & 1.9  & 233 & &&&\\
    CAHA      & 2001 & Dec. & 07 & 20&09 & 8.8  &1032 &0&2~452~251.5164&$-$0.0009&\hfill used for profile\\
    Piszk\'estet\H o & 2001 & Dec. & 07 & 19&23 & 7.3 & 380 &0&2~452~251.5164&$-$0.0009\\
    BOAO      & 2001 & Dec. & 08 & 11&20 & 9.0  &1029 & &&&\\
    Piszk\'estet\H o & 2001 & Dec. & 08 & 18&14 & 4.7 & 200 & &&&\hfill used for profile\\
    WISE      & 2001 & Dec. & 09 & 01&12 & 2.4  & 690 & &&&\hfill used for profile\\   
    WISE      & 2001 & Dec. & 09 & 18&02 & 1.8  & 511 & &&&\\ 
    Piszk\'estet\H o & 2001 & Dec. & 09 & 18&26 & 7.5 & 370 & &&&\hfill used for profile\\
    WISE      & 2001 & Dec. & 09 & 20&46 & 2.6  & 768 & &&&\hfill used for profile\\ 
    WISE      & 2001 & Dec. & 09 & 23&43 & 2.0  & 564 & &&&\hfill used for profile\\ 
    WISE      & 2001 & Dec. & 10 & 01&47 & 1.8  & 505 & &&&\hfill used for profile\\ 
    BOAO      & 2001 & Dec. & 11 & 16&51 & 1.6  & 181 & &&&\hfill used for profile\\
    BOAO      & 2001 & Dec. & 11 & 19&17 & 0.9  & 101 & &&&\hfill used for profile\\
    SAAO      & 2001 & Dec. & 11 & 22&22 & 3.0  &1080 &3&2~452~255.4007&$+$0.0016&\\
    GAO       & 2001 & Dec. & 12 & 11&33 & 1.4  & 308 & &&&\\
    SAAO      & 2001 & Dec. & 12 & 21&41 & 1.7  & 627 & &&&\\
    GAO       & 2001 & Dec. & 13 & 13&47 & 5.3  &1000 & &&&\\
    SAAO      & 2001 & Dec. & 13 & 19&57 & 5.4  &1821 & &&&\\
    GAO       & 2001 & Dec. & 14 & 12&37 & 6.7  &1301 &5&&&\\
    BOAO      & 2001 & Dec. & 14 & 16&35 & 2.5  & 257 & &&&\hfill used for profile\\
    Piszk\'estet\H o & 2001 & Dec. & 14 & 18&08 & 6.7 & 328 & &&&\hfill used for profile\\
    SAAO      & 2001 & Dec. & 14 & 20&11 & 5.1  &1821 & &&&\\
    SAAO      & 2001 & Dec. & 15 & 22&01 & 1.9  & 643 & &&&\\
    GAO       & 2001 & Dec. & 16 & 16&25 & 3.2  & 700 & &&&\hfill used for profile\\
    SAAO      & 2001 & Dec. & 16 & 19&58 & 5.3  &1901 &7&&&\\
    GAO       & 2001 & Dec. & 17 & 10&51 & 0.9  & 203 & &&&\\
    GAO       & 2001 & Dec. & 17 & 13&19 & 0.6  & 125 & &&&\\
    GAO       & 2001 & Dec. & 17 & 15&50 & 3.2  & 700 & &&&\\
    SAAO      & 2001 & Dec. & 17 & 20&02 & 5.1  &1827 & &&&\\
    GAO       & 2001 & Dec. & 18 & 10&22 & 8.6  &1750 & &&&\\
    SAAO      & 2001 & Dec. & 18 & 20&03 & 4.8  &1710 & &&&\\
    GAO       & 2001 & Dec. & 19 & 12&22 & 6.7  & 753 &9&2~452~263.1615&$-$0.0013&\hfill used for profile\\
    SAAO      & 2001 & Dec. & 19 & 20&04 & 4.8  &1738 & &&&\\
    SARA      & 2001 & Dec. & 19 & 04&54 & 7.2  & 817 & &&&\hfill used for profile\\
    GAO       & 2001 & Dec. & 20 & 10&54 & 6.2  & 650 & &&&\hfill used for profile\\
    SAAO      & 2001 & Dec. & 20 & 19&58 & 4.9  &1752 &10&2452264.4599&$+$0.0031&\\
    SARA      & 2001 & Dec. & 20 & 02&37 & 9.7  &1107 & &&&\hfill used for profile\\
    SAAO      & 2001 & Dec. & 21 & 19&53 & 5.0  &1804 & &&&\\
    GAO       & 2001 & Dec. & 22 & 12&50 & 6.0  & 625 & &&&\hfill used for profile\\
    SAAO      & 2001 & Dec. & 22 & 21&22 & 3.0  &1074 & &&&\\
    SARA      & 2001 & Dec. & 22 & 04&31 & 3.3  & 404 &11&2~452~265.7487&$-$0.0019&\\
    SARA      & 2001 & Dec. & 23 & 05&12 & 0.8  & 100 & &&&\\
    SARA      & 2001 & Dec. & 23 & 10&53 & 1.0  & 125 &12&&&\\
    GAO       & 2001 & Dec. & 23 & 12&37 & 5.8  & 700 &12&2~452~267.0450&$+$0.0004&\hfill used for profile\\
    SAAO      & 2001 & Dec. & 23 & 19&54 & 4.9  &1663 & &&&\\
    GAO       & 2001 & Dec. & 24 & 12&37 & 6.0  & 720 & &&&\hfill used for profile\\
    CAHA II   & 2002 & Oct. & 31 & 23&11 & 3.6  &  50 & &&&\hfill used for profile\\
    CAHA II   & 2002 & Nov. & 04 & 22&43 & 1.8  &  27 & &&&\hfill used for profile\\
    CAHA II   & 2002 & Nov. & 07 & 02&14 & 2.4  &  17 &259&2~452~586.6506&$+$0.0010&\\
    CAHA II   & 2002 & Nov. & 09 & 23&02 & 6.9  &  99 & &&& \hfill ~~~~
                                                     Johnson $I$ filter data\\
    CAHA II   & 2002 & Nov. & 11 & 22&59 & 5.2  &  75 &262&2~452~590.5304&$-$0.0010& \hfill  
                                                     Johnson~$I$ filter data\\
    \hline
  \end{tabular}
$$
\end{table}