GCN Circular 23308
Subject
GRB 181002A: Mondy optical upper limit
Date
2018-10-05T07:28:44Z (6 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), A. Pozanenko (IKI), E. Klunko (ISTP), A. Volnova
(IKI) report on behalf of of larger GRB follow-up collaboration:
We observed the field of the GRB 181002A (Gropp et al., GCN 23290)
with AZT-33IK telescope of Sayan observatory (Mondy). We obtained
several images in R-filter starting on Oct. 02 (UT) 16:31:56. We do not
detect any object within enhanced Swift-XRT position (Beardmore et al.,
GCN 23292). Preliminary photometry of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL(3sigma)
(mid, days) (s)
2018-10-02 16:31:56 0.23281 R 58*60 n/d n/d 22.9
The photometry is based on nearby SDSS-DR12 stars
SDSS-DR12_id R(Lupton)
J041903.61+151252.8 18.69
J041903.16+151309.7 18.40
J041848.32+151242.2 16.52
J041904.57+151201.2 17.35
J041857.89+151107.8 17.14