GCN Circular 17639
Subject
GRB 150323C: Mondy optical observations
Date
2015-03-25T13:29:01Z (9 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), A. Volnova (IKI), E. Klunko (ISTP), I. Korobtsev
(ISTP), M. Eselevich (ISTP), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the GRB 150323C (Amaral-Rogers et al., GCN
17621) with AZT-33IK telescope of Sayan observatory (Mondy) starting on
Mar., 23 (UT) 11:42:02. We obtained several images in R-filter of 120 s
exposure. Within enhanced Swift-XRT error circle (Osborne et al., GCN
17633) we clearly detect optical afterglow (Xu et al. GCN 17625, Xin
et al. GCN 17631; Watson et al. GCN 17632) in a combined image.
Preliminary photometry of the afterglow is following
Date UT start t-T0 Filter Exp. OT Err.
(mid, days) (s)
2015-03-24 15:14:09 0.95405 R 44*120 22.4 0.3
Photometry is based on SDSS DR9 stars:
SDSS9_id R(Lupton)
J125023.08+501048.2 16.84
J125032.04+501021.5 18.37
J125016.28+501035.8 18.22