GCN Circular 11117
Y. Urata (NCU) and K.Y Huang (ASIAA) on behalf of EAFON report; "We started to observe the GRB 100816A (Palmer et al. GCN 11102) using Lulin One-meter Telescope (LOT) with r'-band filter. The observation started at 2010 August 16 18:09 about 17.5 hr after the burst. The brightness of afterglow including the possible host galaxy reported by Im et al. (# 11108) and Tanvir et al (# 11109) is R=21.6+/-0.1 in Vega. The photometric calibration is performed against USNO-B1 stars in the field."