GCN Circular 33227
Subject
AT2023avj ZTF Candidate: Assy optical observations
Date
2023-01-28T14:06:56Z (a year ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
N. Pankov (HSE, IKI), V. Kim (FAI, Pulkovo Observatory), A. Pozanenko
(IKI), M. Krugov (FAI), S. Belkin (IKI) report on behalf of GRB IKI FuN:
We observed the Candidate Optical Afterglow ZTF23aaarlti (AT2023avj)
(Wang et al., GCN 33226) with AZT-20 telescope of Assy-Turgen
observatory starting on 2023-01-277 (UT) 19:03:41.
We clearly detect the optical source (Wang et al., GCN 33226).
Preliminary photometry of the optical afterglow in a stacked image is
following
Date UT start MJD Exp. Filter OT Err. UL(3sigma)
(mid, days) (s)
2023-01-27 19:03:41 59971.80069 75*60 r'(AB) 22.67 0.12 23.9
The photometry is based on nearby PS1 stars.