GCN Circular 27830
Subject
GRB 200524A: Assy optical observations
Event
Date
2020-05-27T15:13:26Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI), V. Kim (AFIF, Pulkovo Observatory), A. Pozanenko (IKI),
M. Krugov (AFIF), E. Mazaeva (IKI), A. Volnova (IKI) report on
behalf of larger GRB IKI FuN collaboration:
We observed Fermi-LAT GRB 200524A (Dirirsa et al., GCN 27797; see also
Pookalil et al., GCN 27809; Capalbi et al., GCN 27811; Gupta et al.,
GCN 27818) with AZT-20 1.5 m telescope of Assy-Turgen observatory
starting on May. 26 (UT) 15:34:49 in r'-filter. Optical afterglow
discovered by ZTF (Ho et al., GCN 27799) and observed by several
observations (Kumar et al., GCN 27800; Rumyantsev et al., GCN 27802;
Sanwal et al., GCN 27803; Perley et al., GCN 27805; Kumar et al., GCN
27806; de Ugarte Postigo et al., GCN 27807; Blazek et al., GCN 27810;
Ogawa et al., GCN 27813; Izzo, GCN 27817; Belkin et al., GCN 27820; Kuin
et al., GCN 27825). Preliminary photometry of the afterglow is following
Photometry of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL (3sigma)
(mid, days) (s)
2020-05-26 15:34:49 2.4721 r'(AB) 98*60 22.57 0.10 24.4
The photometry is based on the nearby stars of PS1 catalog.
PanSTARRS-PS1_id r
181072130294808209 20.4066
181072130171186332 20.9877
181082129951473104 20.1196