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GCN Circular 20018

GRB 161007A: Mondy optical observations
2016-10-08T21:35:58Z (8 years ago)
Alexei Pozanenko at IKI, Moscow <>
E. Mazaeva (IKI), A. Pozanenko (IKI), E. Klunko (ISTP), A. Volnova 
(IKI), I. Korobtsev (ISTP)  report on behalf of larger GRB follow-up 

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
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