GCN Circular 14988
Subject
GRB 130702Ð
Date
2013-07-05T14:48:13Z (11 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Pozanenko (IKI), A. Volnova (IKI), O. Burhonov (UBAI), I. Molotov
(KIAM) report on behalf GRB follow-up collaboration:
We observed the field of OT (Singer et al., GCN 14967) of GRB 130702��
(= Fermi 394416326)(Cheung et al., GCN 14971; Collazzi et al., GCN
14972) with AZT-22 telescope of Maidanak observatory on Jul. 3 and Jul.
4 under good weather conditions and seeing (FWHM) of about 1 arcsec. We
clearly detected OT (Singer et al., GCN 14967) in each images of both
epochs.
A preliminary photometry of combined images is based on the two SDSS
stars suggested by Schulze et al. (GCN 14978), i.e.
SDSS J142915.86+154510.0 assuming R = 16.03
SDSS J142911.60+154535.2 assuming R = 15.59
T_start T0+ Filter, Exposure, OT
(UT) (mid, d) (s)
2013-07-03T17:38:18 1.70828 R 6x600 18.69 +/- 0.03
2013-07-04T16:49:20 2.67427 R 6x300 19.31 +/- 0.04
We note that the fading of a lc assuming a power law between our two
epochs is alpha=1.27 which is steeper, than reported in early
observations (Perley et al., GCN 14981).