GCN Circular 18891
Subject
GRB 151228B: AbAO optical upper limit
Date
2016-01-18T21:23:00Z (8 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), R. Inasaridze (AbAO), V. Ayvazian (AbAO), A. Volnova
(IKI), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger
GRB follow-up collaboration:
We observed the field of the Swift GRB 151228B (Lien et al., GCN
18739) with AS-32 (0.7m) telescope of Abastumani Observatory starting on
Dec. 29 (UT) 14:38:28. We do not detect any source within
enhanced XRT error circle (Goad et al., GCN 18743):
Date UT start t-T0 Filter Exp. UL(3 sigma)
(mid, days) (s)
2015-12-29 14:38:28 0.69297 None 35*120 22.1
The photometry is based on nearby SDSS-DR9 stars:
SDSS-DR9_id R_Lupton
J225738.02+080336.8 18.18
J225747.18+080340.7 16.86
J225736.71+080628.4 17.72
J225752.89+080438.1 17.46
J225726.79+080540.6 16.99