TITLE:   GCN CIRCULAR
NUMBER:  18287
SUBJECT: GRB 150910A: Chuguev observatory optical observations
DATE:    15/09/12 02:51:11 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>

Yu. Krugly (IA KhNU),  E. Mazaeva (IKI), V. Shevchenko  (IA KhNU),  T. 
Gromakina (IA KhNU), I. Molotov (KIAM), A. Pozanenko  (IKI) report on 
behalf of larger GRB follow-up collaboration:

We observed the field of GRB 150910A (Pagani et al., GCN  18264)  with 
0.7m  telescope of Institute of Astronomy, Kharkiv National University 
starting on Sep. 10 (UT) 21:41:15. We obtained several images in R B 
filter.   The afterglow  (Pagani et al., GCN 18264; Zheng & Filippenko, 
GCN 18265) is clearly visible in a combined image. The photometry of the 
combined image is following

Date       UT start    t-T0     Filter  Exp.     OT       Err
                        (mid, days)      (s)

2015-09-10 21:41:15    0.52235  R       11*180   20.25 +/-0.14

The photometry is based on SDSS stars used in GCN 18281 (Mazaeva et al.)