TITLE: GCN CIRCULAR NUMBER: 19100 SUBJECT: GRB 160227A: Mt. Terskol observatory optical observation DATE: 16/02/27 20:13:58 GMT FROM: Alexei Pozanenko at IKI, Moscow M. Andreev (Terskol Branch of INASAN), E. Mazaeva (IKI), V. Kozlov (IC AMER, NASU), A. Sergeev (Terskol Branch of INASAN), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of GRB 160227A (Siegel et al., GCN 19098) with Zeiss-600 telescope of Mt. Terskol observatory in R-filter starting on Feb. 27 (UT) 19:45:26. We obtained several images in R-filter. We clearly detect source in coordinates (J2000) 12 59 13.7 +78 40 44.9 which is apparently the afterglow of GRB GRB 160227A (Siegel et al., GCN 19098; Gorbovskoy et al., GCN 19099). The afterglow is clearly detected in a single images of 30 s exposure with brightness of ~19.0 magnitude in R-filter at Feb. 27 (UT) 19:49:36.