TITLE: GCN CIRCULAR NUMBER: 13543 SUBJECT: T100 observations of GRB 120729A DATE: 12/07/30 10:54:36 GMT FROM: Tolga Guver at UA Guver, T. (Sabanci Univ.), Sonbas, E. (GSFC, Adiyaman Univ.), S. Kaynar (Akdeniz Univ.), O. Onal (Istanbul Univ.), S. Tuncel Guctekin (Istanbul Univ.), Gogus, E. (Sabanci Univ.), S. Ak (Istanbul Univ.), Z. Eker (TUG) on behalf of a larger collaboration. We observed the field of GRB 120729A (Ukwatta et al., GCN #13530) with the 1.0 meter T100 telescope (TUBITAK National Observatory, Antalya - Turkey), starting at 2012-07-29, 19:43:07 UT ( ~9 hours after the trigger). We obtained 4 x 300 s exposures with R filter under poor weather conditions (seeing 2.4"). Similar to the report by Xin et al. (GCN #13537) we do not detect an optical afterglow at the UVOT error circle reported by Ukwatta et al. (GCN #13530) in the combined R band image. We determine the 4-sigma detection limit of our R band image to be 20.04 mag, (calibrated to R2 of USNO-B1). 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.