[vsnet-grb-info 18570] GRB 161007A: Mondy optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  20018
SUBJECT: GRB 161007A: Mondy optical observations
DATE:    16/10/08 21:35:58 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

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

We observed the field of the the GRB 161007A (D'Elia et al., GCN 20008) 
with  AZT-33IK telescope of Sayan observatory (Mondy) starting on 
October, 07 (UT) 21:51:45. We obtained several images in R-filter. 
Within XRT error circle (Goad et al., GCN 20013) we do not detected any 
source. Preliminary photometry  of the field  is following

Date        UT start   t-T0      Filter Exp.   OT   UpLim (3 sigma)
                       (mid, days)       (s)

2016-10-07  21:51:45   0.03025   R      35*60  n/d  21.5

Photometry is based on nearby USNO-B1.0 stars
USNO-B1         R2
1133-0144160    15.67
1133-0144193    15.95
1133-0144230    14.48