TITLE: GCN CIRCULAR NUMBER: 17168 SUBJECT: GRB 141212A: Khureltogot optical upper limit DATE: 14/12/12 20:09:31 GMT FROM: Alexei Pozanenko at IKI, Moscow E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of Astronomy and Geophysics MAS), A. Volnova (IKI), I.Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of GRB 141212A (Ukwatta et al., GCN 17158) with ORI-40 telescope of Khureltogot observatory. We obtained 2 hours of unfiltered images on Dec. 12 starting on (UT) 12:46:14. In a combined image of the first 5 frames we do not detect any optical source within enhanced Swift-XRT position (Osborne et al., GCN 17164). Preliminary photometry is following Date UT start t-T0 Filter Exp. ULimit (3sigma) (mid, days) (s) 2014-12-12 12:46:14 0.02422 R 5*60 18.5 The photometry is based on USNO-B1.0 stars USNO-B1_id RA DEC R2 1081-0038366 039.120895 +18.127567 16.32 1081-0038391 039.149945 +18.154739 17.15 1081-0038340 039.085725 +18.167617 14.41