GCN Circular 15807
Subject
GRB 140206A: Mondy optical observations
Event
Date
2014-02-08T16:11:34Z (13 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), E. Klunko (ISTP), M. Eselevich (ISTP), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the afterglow (Oksanen et al., GCN 15786; Oates et al., GCN
15787) of the Swift/INTEGRAL/Fermi GRB 140206A (Lien et al., GCN 15784;
Gotz et al., GCN 15785, Kienlin et al., GCN 15796) with AZT-33IK
telescope of Sayan observatory (Mondy) starting on Feb. 6 (UT) 14:15.
We clearly detect afterglow in each frame of 60 s exposure. A
preliminary photometry of the afterglow is following:
date Filter UT start Exp,s t-T0,d OT err
2014-02-06 R 14:15:21 120 0.29098 18.73 0.05
2014-02-06 R 14:31:29 60 0.30185 18.59 0.07
2014-02-06 R 15:02:15 60 0.32321 18.61 0.07
2014-02-06 R 18:14:26 60 0.45667 19.01 0.08
2014-02-06 R 18:53:29 60 0.48379 19.29 0.09
The photometry is based on reference stars SDSS-DR9, (R mag,
transformation by Lupton 2005)
N SDSS_id R(Lupton)errR
4 J094058.58+664752.4 18.030 0.022
5 J094107.93+664422.0 19.066 0.028