GCN Circular 11653
Yuji Urata, Chia-Jung Chuang (NCU) and Kuiyun Huang (ASIAA) on behalf of EAFON report "We made a further optical afterglow observation with r'-band using the Lulin 1m telescope. The stacked image made from 7 frames with 600s exposure shows the afterglow clearly. The brightness calibrated against with the SDSS catalog is r'=22.49+/-0.12 at 1.53 days after the burst. This is consistent with the extrapolation of the simple power-law decay with the temporal index of about 1.9 from our previous report (GCN 11648)."