TITLE: GCN CIRCULAR NUMBER: 16729 SUBJECT: GRB 140817A: Khureltogot optical upper limit DATE: 14/08/20 17:29:16 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Pozanenko (IKI), N. Tungalag (Research Center of Astronomy and Geophysics MAS), S. Schmalz (AIP), A. Volnova (IKI), I.Molotov (KIAM) report on behalf of larger GRB follow-up collaboration: We observed the field of GRB 140817A (Sbarufatti et al., GCN 16695) with ORI-40 telescope of Khureltogot observatory. We started observation on Aug. 17 (UT) 14:20:48 and obtained 60 unfiltered images of 60 s exposure. Within enhanced XRT error circle (Osborne et al., GCN 16697) we do not detect any new object and in particular the afterglow candidate (Marshall et al., GCN 16710). Details of a photometry of the stacked image is following Date UT start t-T0 Filter Exp. UL(3 sigma) (mid, days) (s) 2014-08-17 14:20:48 0.3269 None 60*60 18.2 The photometry is based on USNO-B1.0 star 1481-0233222 assuming R=15.43.