TITLE:   GCN CIRCULAR
NUMBER:  15243
SUBJECT: GRB 130702A: RTT150 optical observations
DATE:    13/09/23 09:59:57 GMT
FROM:    Rodion Burenin at IKI, Moscow  <rodion@hea.iki.rssi.ru>

G. Khorunzhev, A. Volnova, A. Pozanenko, 
R. Burenin, M. Pavlinsky, R.  Sunyaev (IKI), 
I. Bikmaev, N. Sakhibullin (KFU/AST), 
I. Khamitov, H.  Kirbiyik (TUG) 

report:

We observed the afterglow of Fermi GRB 130702A (Singer et al., GCN
14967, Cheung et al., GCN 14971; Collazzi et al., GCN 14972), and
their progenitor Supernova SN 2013dx (Schulze et al. GCN 1994; Cenko
et al. GCN 14998) with Russian-Turkish 1.5-m telescope (RTT150,
Bakirlitepe, TUBITAK National Observatory, Turkey) on Aug., 28 starting
at UT 18:21:58. We obtained several images with exposure of 300
seconds in R band. A preliminary photometry of the GRB afterglow + SN
2013dx + host galaxy, based on two SDSS stars suggested by Schulze et
al. (GCN 14978):

T_start              T0+       Filter, Exposure,   OT
(UT)                 (mid, d)            (s)

2013-08-28T18:21:58  57.74046  R       6x300       21.47+/-0.08