[vsnet-grb-info 17039] GRB 150910A: Mt. Terskol observatory optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  18320
SUBJECT: GRB 150910A: Mt. Terskol observatory optical observations
DATE:    15/09/16 11:45:10 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

A. Volnova (IKI), A. Sergeev (Terskol Branch of INASAN), M. Andreev 
(Terskol Branch of INASAN),  E. Mazaeva (IKI), 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 
Zeiss-2000 telescope of Mt. Terskol observatory in R-filter starting on 
Sep. 11 (UT) 00:40:58.  The afterglow (Pagani et al., GCN 18264; Zheng & 
Filippenko, GCN 18265) is clearly detected in a each image. The 
photometry of a combined image is following

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

2015-09-11 00:40:58 0.67083 R      13*120 20.90  0.07

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