Table 1: Journal of optical observations of the GRB 051028 field.
Date of 2005 UT Telescope/ Filter Exposure Time Magnitude
(mid exposure) Instrument   (s)  
Oct. 28, 16:18 2.0 HCT (HFOSC) $R_{\rm c}$ 300 20.63 $\pm$ 0.04
Oct. 28, 16:32 2.0 HCT (HFOSC) $R_{\rm c}$ 300 20.72 $\pm$ 0.05
Oct. 28, 16:47 2.0 HCT (HFOSC) $R_{\rm c}$ 300 21.14 $\pm$ 0.07
Oct. 28, 17:03 2.0 HCT (HFOSC) $R_{\rm c}$ 300 21.27 $\pm$ 0.07
Oct. 28, 17:43 1.34 Taut (CCD) $R_{\rm c}$ 1080 21.23 $\pm$ 0.13
Oct. 28, 17:47 2.0 HCT (HFOSC) $R_{\rm c}$ 300 21.17 $\pm$ 0.08
Oct. 28, 21:42 4.2 WHT (PFC) R 300 21.97 $\pm$ 0.05
Oct. 29, 05:47 4.2 WHT (PFC) R 120 22.8 $\pm$ 0.3
Oct. 29, 20:15 4.2 WHT (PFC) R 720 >23.7
Oct. 31, 22:14 4.2 WHT (PFC) R 2700 >25.1
Oct. 28, 16:25 2.0 HCT (HFOSC) $I_{\rm c}$ 300 19.79 $\pm$ 0.11
Oct. 28, 16:39 2.0 HCT (HFOSC) $I_{\rm c}$ 300 19.94 $\pm$ 0.06
Oct. 28, 16:55 2.0 HCT (HFOSC) $I_{\rm c}$ 300 20.29 $\pm$ 0.09
Oct. 28, 17:09 1.34 Taut (CCD) $I_{\rm c}$ 1080 20.5  $\pm$  0.3
Oct. 28, 17:10 2.0 HCT (HFOSC) $I_{\rm c}$ 300 20.38 $\pm$ 0.08
Oct. 28, 17:55 2.0 HCT (HFOSC) $I_{\rm c}$ 300 20.35 $\pm$ 0.09
Oct. 28, 19:12 1.34 Taut (CCD) $I_{\rm c}$ 1800 20.67 $\pm$ 0.23
Oct. 28, 20:33 1.34 Taut (CCD) $I_{\rm c}$ 3600 20.75 $\pm$ 0.13
Oct. 28, 22:50 1.34 Taut (CCD) $I_{\rm c}$ 5400 21.16 $\pm$ 0.16
Oct. 28, 18:28 1.34 Taut (CCD) V 1080 22.08 $\pm$ 0.20


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