[vsnet-grb-info 17311] GRB 151205A: Khureltogot upper limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  18676
SUBJECT: GRB 151205A: Khureltogot upper limit
DATE:    15/12/09 10:19:21 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

A. Volnova (IKI), S. Schmalz (AIP), E. Mazaeva (IKI),  N. Tungalag 
(Research Center of Astronomy and Geophysics MAS),   I. Molotov (KIAM), 
  A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:

We observed the field of Swift GRB 151205A (Cummings et al., GCN 18657)
with ORI-40 telescope of Khureltogot observatory starting on  Dec., 5 
(UT) 20:49:25, i.e. ~6 hours after the burst trigger.  We do not detect 
any object within enhanced XRT error circle  (Osborne et al., GCN 18658).
Photometry of the field is following


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

2015-12-05 20:49:25 0.24451 none  90*60 21.3

Photometry is based on nearby SDSS stars,
R magnitude deduced from Lupton's transformations.

SDSS id              R(Lupton)
J151723.45+354524.6  13.849	0.011
J151723.30+354351.0  14.562	0.012
J151718.79+354350.3  15.801	0.013