\begin{table}%t2
%\centering
\par
\caption{Observational log of the photometric CCD magnitudes in 
Bessell $B, V, R, I$, SDSS $r', i'$ broad-band optical and $J, K$ $\rm NIR$ 
observations of the GRB~050730 afterglow. \label{tab2}}
{\tiny \begin{tabular}{ccll} \hline \hline 
Date (UT) of & Magnitude & Exposure time & Telescope  \\
2005 & &(s)&  \\   \hline 
\noalign{\smallskip} 
\multicolumn{3}{c}{\bf $B-$ passband}  \\
July 30.8608&$19.68\pm0.04$&300 &OSN 1.5~m \\
July 30.8745&$19.61\pm0.03$&300 &OSN 1.5~m \\ 
July 30.8899&$19.77\pm0.04$&300 &OSN 1.5~m \\ 
July 30.9567&$19.96\pm0.18$&240 &LT 2.0~m \\ 
 \multicolumn{3}{c}{\bf $V-$ passband} \\ 
July 30.8572&$18.00\pm0.01$&300 &OSN 1.5~m \\ 
July 30.8718&$18.21\pm0.01$&300 &OSN 1.5~m \\ 
July 30.8863&$18.28\pm0.02$&300 &OSN 1.5~m \\ 
July 30.9018&$18.60\pm0.02$&300 &OSN 1.5~m \\ 
July 30.9162&$18.69\pm0.04$&300 &OSN 1.5~m \\ 
July 30.9528&$18.56\pm0.08$&240 &LT 2.0~m \\ 
July 30.9536&$18.67\pm0.12$&225 &CTIO 1.3~m \\ 
July 30.9604&$18.92\pm0.08$&225 &CTIO 1.3~m \\ 
July 30.9623&$18.92\pm0.06$&$225\times4$ &CTIO 1.3~m \\ 
July 30.9638&$18.92\pm0.07$&225 &CTIO 1.3~m \\ 
July 30.9711&$19.13\pm0.07$&225 &CTIO 1.3~m \\ 
 \multicolumn{3}{c}{\bf $r'-$ passband} \\ 
July 30.8625&$16.78\pm0.20$&120 &LT 2.0~m \\ 
July 30.8670&$17.11\pm0.10$&240 &LT 2.0~m \\ 
July 30.8747&$17.29\pm0.05$&360 &LT 2.0~m \\ 
July 30.8841&$17.46\pm0.04$&240 &LT 2.0~m \\ 
July 30.8872&$17.50\pm0.04$&240 &LT 2.0~m \\ 
July 30.8991&$17.74\pm0.04$&240 &LT 2.0~m \\ 
July 30.9022&$17.84\pm0.05$&240 &LT 2.0~m \\ 
July 30.9426&$17.70\pm0.05$&240 &LT 2.0~m \\ 
July 30.9604&$17.88\pm0.04$&240 &LT 2.0~m \\ 
 \multicolumn{3}{c}{\bf $R-$ passband} \\ 
July 30.8536&$17.07\pm0.01$&300 &OSN 1.5~m \\ 
July 30.8682&$17.46\pm0.01$&300 &OSN 1.5~m \\ 
July 30.8827&$17.42\pm0.01$&300 &OSN 1.5~m \\ 
July 30.8982&$17.78\pm0.01$&300 &OSN 1.5~m \\ 
July 30.9053&$17.93\pm0.01$&300 &OSN 1.5~m \\ 
July 30.9126&$17.88\pm0.02$&300 &OSN 1.5~m \\ 
July 30.9197&$17.91\pm0.02$&300 &OSN 1.5~m \\ 
July 31.6736&$21.48\pm0.07$&300+900&HCT 2.01~m \\ 
 \multicolumn{3}{c}{\bf $i'-$ passband} \\ 
July 30.8644&$16.68\pm0.13$&120 &LT 2.0~m \\ 
July 30.8705&$16.76\pm0.06$&240 &LT 2.0~m \\ 
July 30.8798&$16.74\pm0.03$&360 &LT 2.0~m \\ 
July 30.8909&$16.90\pm0.04$&240 &LT 2.0~m \\ 
July 30.8939&$16.92\pm0.04$&240 &LT 2.0~m \\ 
July 30.9066&$17.18\pm0.04$&360 &LT 2.0~m \\ 
July 30.9105&$17.14\pm0.04$&240 &LT 2.0~m \\ 
July 30.9469&$17.08\pm0.04$&240 &LT 2.0~m \\ 
 \multicolumn{3}{c}{\bf $I-$ passband} \\ 
July 30.8495&$15.66\pm0.01$&300 &OSN 1.5~m \\ 
July 30.8646&$16.35\pm0.01$&300 &OSN 1.5~m \\ 
July 30.8791&$16.34\pm0.01$&300 &OSN 1.5~m \\ 
July 30.8941&$16.59\pm0.01$&300 &OSN 1.5~m \\ 
July 30.9088&$16.87\pm0.01$&300 &OSN 1.5~m \\ 
July 30.9232&$16.80\pm0.02$&300 &OSN 1.5~m \\ 
July 30.9503&$16.74\pm0.01$&400 &IAC80 \\ 
July 30.9517&$16.87\pm0.03$&225 &CTIO 1.3~m \\ 
July 30.9623&$16.97\pm0.02$&225 &CTIO 1.3~m  \\ 
July 30.9671&$17.10\pm0.02$&225 &CTIO 1.3~m  \\ 
July 30.9769&$17.22\pm0.02$&225 &CTIO 1.3~m  \\ 
July 31.9167&$20.75\pm0.08$&900+1800+2200&IAC80 \\ 
Aug. 01.1963&$20.73\pm0.01$&$360\times6 $&CTIO 1.3~m  \\ 
Aug. 03.0341&$22.64\pm0.46$&$300\times11$&OSN 1.5~m \\ 
 \multicolumn{3}{c}{\bf $J-$ passband} \\ 
July 30.9537&$16.17\pm0.07$&$45\times4$&CTIO 1.3~m \\ 
July 30.9605&$16.14\pm0.08$&$45\times4$&CTIO 1.3~m \\ 
July 30.9639&$16.55\pm0.08$&$45\times4$&CTIO 1.3~m \\
July 30.9711&$16.46\pm0.07$&$45\times4$&CTIO 1.3~m \\ 
July 31.0285& $>$$19.5\pm0.1$&$60\times30$& CTIO 1.3~m\\ 
 \multicolumn{3}{c}{\bf $K-$ passband} \\ 
July 30.9538&$14.73\pm0.10$&$45\times8$&CTIO 1.3~m \\ 
July 30.9708&$15.01\pm0.10$&$45\times8$&CTIO 1.3~m \\ 
\hline
\end{tabular} }
\end{table}