TITLE: GCN CIRCULAR NUMBER: 14528 SUBJECT: GRB 130502A: T100 Observations DATE: 13/05/02 19:42:53 GMT FROM: Tolga Guver at UA T. Guver (Sabanci Univ.), B. Ozcan (Adiyaman Univ.) E. Sonbas (Adiyaman Univ.), M. Kocak (TUG), E. Gogus (Sabanci Univ.), H. Kirbiyik (TUG) report on behalf of a larger collaboration We observed the field of Swift GRB 130502A (Troja et al. GCN#14527) with the 1.0 meter T100 telescope (TUBITAK National Observatory, Antalya - Turkey), starting May, 02, 18:17:41 UT (~ 27 minutes after the trigger). Observations were carried out in the R filter under good weather conditions. We do not detect an optical afterglow within the reported XRT error circle down to a limiting magnitude of 20.8 in the R band. Our image is calibrated using USNO A2.0 R1 magnitude of the star at RA : 135.578498, DEC : -00.149362 (J2000). We are grateful to the TUBITAK National Observatory staff for promptly scheduling the observations and their technical support. ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.