GCN Circular 28875
Subject
ZTF20acozryr/AT2020yxz (GRB 201103B): Mondy, Kitab, TSHAO optical observations
Date
2020-11-09T23:22:50Z (4 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI), E. Klunko (ISTP), A. Zhornichenko (KIAM), A. Kusakin
(FAI), I. Reva(FAI), A. Pozanenko (IKI), N. Pankov (HSE) report on
behalf of GRB IKI FuN:
We observed the ZTF20acozryr/AT2020yxz (Coughlin et al., GCN 28841)
with AZT-33IK telescope of Mondy observatory, RC-36 telescope of Kitab
observatory, and Zeiss-1000 of Tian Shan observatory. We detect the
optical transient (Coughlin et al., GCN 28841; Xu et al., GCN 28846;
Zhu et al., GCN 28854; Mao et al., GCN 28861; Belkin et al., GCN 28862;
Mao et al., GCN 28863) associated with afterglow of GRB 201103B (Ursi
et al., GCN 28831; Svinkin et al., GCN 28844; Evans et al., GCN 28858).
Preliminary photometry of the afterglow is following
Date UT start t-T0 Filter Exp. OT Err. UL. Telescope
(mid, days) (s)
2020-11-05 21:57:40 2.16938 CR 26*60 n/d n/d 19.0 RC-36
2020-11-06 15:42:41 2.92217 R 32*120 20.23 0.26 20.5 AZT-33IK
2020-11-06 16:56:13 2.97237 R 32*120 20.49 0.12 21.7 Z-1000
2020-11-08 14:13:52 4.85911 R 32*120 21.50 0.10 23.0 AZT-33IK
The photometry is based on the nearby stars of PanSTARRS-PS1
RA DEC r
02:48:57.72094 +12:12:04.2202 16.6938
02:48:41.68064 +12:09:59.6523 17.0772