Table 1: Log of the published values of the limiting magnitudes, presented in the chronological order. The first column is the date from GRB (in days). The second is the limiting R magnitude of the image. The third is the GCN circular index of the publication.

Date	R lim	GCNC	Instrument
0.0000	8	1430	BOOTES-1 (D=0.06 m)
0.0208	8	1430	BOOTES-1 (D=0.06 m)
0.0654	18.5	1408	TAROT (D=0.25 m)
0.0997	17.7	1406	D. West (D=0.20 m)
0.1512	17.5	1404	Super-LOTIS (D=0.60 m)
0.1831	18	1400	NEAT (D=1.2 m)
0.1859	18	1401	SDSS (D=0.5 m)
0.1873	20.5	1405	KAIT (D=0.8 m)
0.3790	18	1401	SDSS (D=0.5 m)
0.9017	24.7	1433	INT (D=2.5 m)
1.1417	23.6	1434	Baade (D=6.5 m)
1.2352	20.5	1405	KAIT (D=0.8 m)
2.9717	25.2	1433	INT (D=2.5 m)
5.4317	25.5	1434	Subaru(D=8.2 m)
10.1117	24.0	1434	Baade (D=6.5 m)