TITLE: GCN CIRCULAR NUMBER: 16993 SUBJECT: GRB 141028A: SAO RAS Zeiss-1000 photometry DATE: 14/10/30 17:32:39 GMT FROM: Vladimir Sokolov at SAO RAS A.S. Moskvitin, V.N. Komarova, T.N. Sokolova and O.I. Spiridonova SAO RAS) report on behalf of the GRB follow-up team: We observed the field of GRB 141028A (Bissaldi et al., GCN 16969) with the SAO RAS 1-m telescope Zeiss-1000 on October, 29. The observations were started at 18:09:57 UT, ended at 19:40:42. We obtained 14 x 300 sec. images in the Rc filter. The OT discovered by the MASTER team (Gorbovskoy et al., GCN 16972) and observed by numerous telescopes is clearly detected in our stacked frame. The magnitude of OT is R = 20.6 +/- 0.1 in 8 hours since the Fermi trigger (in Vega system, not corrected for the Milky Way extinction). The photometry is based on the nearby USNO-B1 stars and checked with the other catalogues. On the occasion of the twenty-fifth anniversary of the Zeiss-1000 telescope we would like to thank our colleagues S.V. Drabek, V.V. Komarov, V.S. Shergin and V.V. Vlasyuk who have modernized the telescope control system and provided its reliable operation.