GCN Circular 15540
E. Sonbas (Adiyaman Univ.), T. Guver (Sabanci Univ.), E. Gogus (Sabanci Univ.), O. Erece (Akdeniz Univ), M. Kocak (TUG), M. Kaplan (Akdeniz Univ.) report on behalf of a larger collaboration We observed the field of Swift GRB 131128A (Sonbas et al., GCN#15533) with the 1.0 meter T100 telescope (Bakirlitepe, TUBITAK National Observatory, Turkey), starting November, 28, 17:16:02 UT (~ 2.2 hours after the trigger). 300 s $\times$ 5 exposures were obtained in the R filter under moderate weather conditions. We do not detect an optical afterglow within the reported XRT error circle down to a limiting magnitude of 21.2 in the R band. Our image is calibrated using USNO B1.0 star USNO-B1 1213-0590145 at RA :355.25992, DEC : +31.301542 (J2000). We are grateful to TUBITAK National Observatory for prompt scheduling the observations and technical support.