TITLE: GCN CIRCULAR NUMBER: 28986 SUBJECT: GRB 201203A: FRAM-Auger optical limit DATE: 20/12/03 08:09:11 GMT FROM: Martin Jelinek at Astro.Inst-AVCR,Ondrejov Martin Jelinek, Jan Strobl (ASU CAS Ondrejov, CZ), Martin Masek, Petr Janecek, Sergey Karpov, Jakub Jurysek, Jan Ebr, Ronan Cunniffe, Petr Travnicek and Michael Prouza (Institute of Physics, Prague, CZ) report: The 30 cm robotic telescope FRAM-Auger in Malargue (Argentina) reacted robotically to the Swift/BAT alert of GRB201203A (Dichiara et al., GCNC 28985), starting with a series of 20 s unfiltered images at 06:54:04 UT, i.e. 97 s post trigger. We do not detect any new or strongly variable source at or around the reported gamma-ray errorbox in single frames or a combined 20 x 20 s image taken between 1.5 min and 12.5 min after the initial trigger. The combined exposure has a limiting magnitude r'(AB) ~ 17, as calibrated against the Atlas Catalogue.