GCN Circular 8575
C.S Lin (NCU), Y. Urata (Saitama U/ASIAA) and K.Y Huang (ASIAA) on behalf of EAFON report: "We observed the error region of GRB081128 (Margutti et al. GCN8571) using the Lulin 1m telescope from 10.9 min after the burst. The R-band images show possible optical afterglow as reported by Wang et al (GCN 8572) at RA=01:23:13.070 Dec=+38:07:38.77 with R=20.4 magnitude. However, the source shows no variability during our observations (10.9 -- 33.3 min after the burst). Time (min) Rmag, error 10.9 20.4 0.1 33.3 20.4 0.1 There is no other optical sources in the XRT error region down to the R~21.4."