TITLE: GCN CIRCULAR NUMBER: 18769 SUBJECT: V404Cyg Swift Trigger 668097: CrAO RT-22 radio observations DATE: 15/12/30 11:12:31 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volvach (CrAO), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed V404 Cyg after Swift BAT trigger 668097 (Barthelmy et al., GCN 18716) with RT-22 telescope at 36.8 GHz in several epochs. Following RATAN-600 radio detection (Trushkin et al., ATEL 8454) we detect the v404 Cyg source in a flaring mode. Preliminary fluxes are following Date UT, start Flux, Jy Err 2015-12-24 10:35 3.63 0.18 2015-12-25 10:55 2.87 0.14 2015-12-26 09:36 1.20 0.21 2015-12-27 09:38 1.46 0.22 2015-12-28 08:47 0.27 0.08