[vsnet-grb-info 17664] GRB 160227A: ISON-Kislovodsk optical observation

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19101
SUBJECT: GRB 160227A: ISON-Kislovodsk optical observation
DATE:    16/02/27 20:48:55 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

V. Nevskiy (ISON), V. Vikhrov(ISON), K. Polyakov (ISON), N. Rudenko 
(IAON), A. Kalinichenko (ISON), E. Mazaeva (IKI), I. Molotov (KIAM), A. 
Pozanenko (IKI) report on  behalf of larger collaboration:


We observed the field of GRB 160227A (Siegel et al., GCN 19098) with
HGB-500  telescope (0.5-m, f/2) of ISON-Kislovodsk observatory  starting 
on Feb. 27 (UT) 19:38:53, i.e. ~400 s after burst trigger. We obtained 
several unfiltered images of 60 s exposure. We clearly detect  the 
afterglow of GRB 160227A (Siegel et al., GCN 19098; Gorbovskoy et al., 
GCN 19099; Andreev et al., GCN 19100). The afterglow brightness is 
~18.0 magnitude at Feb. 27 (UT) 19:38:53.