GCN Circular 14806
Subject
GRB 130606A: AAO optical observations
Date
2013-06-07T13:22:00Z (11 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), R.Inasaridze (AAO), O. Kvaratskhelia (AAO), V.
Ayvazian(AAO), Yu. Krugly (IA KhNU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift Swift GRB 130606A (Ukwatta et al.,
GCN 14781)with AS-32 (0.7m) telescope of Abastumani Observatory,
starting on Jun. 06 (UT) 21:47:43. We obtained several unfiltered images
of 180 s exposure. The afterglow (Jelinek et al., GCN 14782; Xu et al.,
GCN 14783; Nagayama et al., GCN 14784) is well detected in separate
images. Preliminary photometry
T_start, Exp, T-t0, d OT +/- err
UT s mid, days
21:47:43 180 0.03095 18.84 +/- 0.05
21:51:24 180 0.03351 18.86 +/- 0.04
21:55:04 180 0.03605 18.95 +/- 0.05
21:58:45 2x180 0.03988 19.16 +/- 0.06
is based on SDSS stars R mag, where R mag obtained via transformations
ugriz in BVRI (Lupton, 2005):
SDSS u g r i z R
J163722.96+294541.6 16.747 15.352 14.827 14.598 14.568 14.625
J163734.99+294356.8 18.166 17.023 16.665 16.540 16.503 16.493