[vsnet-grb-info 15747] GRB 141028A: Mondy optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  17035
SUBJECT: GRB 141028A: Mondy optical observations
DATE:    14/11/07 08:08:50 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

E. Mazaeva (IKI), A. Volnova (IKI),  E. Klunko (ISTP),  M. Eselevich (ISTP), 
I. Korobtsev (ISTP), A. Pozanenko (IKI) report on behalf of  larger GRB 
follow-up collaboration:

We observed the field of GRB 141028A (Bissaldi et al., GCN 16969) with 
AZT-33IK telescope of Sayan observatory (Mondy) on Oct., 30  starting on 
(UT) 14:12:40.  We obtained several  images in R-filter. In a combined image 
we  detect optical  afterglow (Gorbovskoy et al., GCN 16972; Graham et al., 
GCN 16977).

Details of the photometry are following:

date           UT start   t-T0      Filter  Exp.    OT     OT_err
                               (mid, days)        (s)

2014-10-30 14:12:40   2.1733  R      2520    21.66 0.22


The photometry is based on  following SDSS DR9 stars:

SDSS_id                         R_Lupton
J213021,99-001255,7       15.503
J213030,76-001427,8       17.205
J213035,56-001205,6       16.620