[vsnet-grb-info 18222] GRB 160629A: Mondy optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19670
SUBJECT: GRB 160629A: Mondy optical observations
DATE:    16/07/09 11:12:49 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

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

We observed the field of the INTEGRAL GRB 160629A (Gotz et al., GCN 
19621) with  AZT-33IK telescope of Sayan observatory (Mondy) starting on 
July, 01 (UT) 18:39:36. We obtained several images in R-filter. Within 
XRT error circle (D'Ai et al., GCN 19641) we  detected optical afterglow 
(Klotz et al., GCN 19622; Sokolov et al., GCN  19623). Preliminary 
photometry  of the field  is following

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

2016-07-01  18:39:36   1.86436   R      20*120 21.73+/-0.15  22.5


Photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
1669-0002297 15.53
1669-0002325 15.34
1669-0002281 15.48
1669-0002346 16.43
1669-0002192 15.78