GCN Circular 13523
Subject
GRB 120716A: optical observation in Maidanak observatory
Date
2012-07-28T14:43:32Z (12 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Pozanenko (IKI), A. Sergeev (Institute of Radio Astronomy NASU), A.
Volnova (SAI MSU), O. Burhonov (UBAI), I. Molotov (KIAM) report on behalf of
larger GRB follow-up collaboration:
We observed the region of the optical afterglow (Cenko et al., GCN 13489)
of IPN localized GRB 120716A (Hurley et al., GCN 13487) with AZT-22
telescope of Maidanak observatory on Jul. 19 (UT) 17:57:06 and Jul. 21
(UT) 18:46:16 under mean seeing of about 0.6 arcsec. Totally we obtained 8
images of 600 s exposure in R filter. In each particular image we clearly
see the optical afterglow (Cenko et al., GCN 13489; Xu et al., GCN 13490;
Schady et al., GCN 13492) in coordinates (J2000) 20:52:12.15 +09:35:54.2
(uncertainty of 0.13 arcsec in both coordinates).
Preliminary photometry of the afterglow is based on USNO-B1.0 nearby stars:
T0+ Filter, Exposure, OT
(mid, d) (s)
date t_start (UT) filter exp,s OT
2012-07-19 17:57:06 R 4*600 20.71+/-0.04
2012-07-21 18:46:16 R 4*600 21.01+/-0.04