Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 27958

GRB 200613A: continued AbAO optical afterglow observations
2020-06-15T21:49:44Z (4 years ago)
Alexei Pozanenko at IKI, Moscow <>
S. Belkin (IKI), A. Pozanenko (IKI), R. Ya. Inasaridze (AbAO), V. R. 
Ayvazian (AbAO),�� G. V. Kapanadze (AbAO),�� E. Mazaeva�� (IKI), A. Volnova 
(IKI), I. Molotov (KIAM)�� report on behalf of IKI-GRB-FuN:

We continue observations of Fermi�� GRB 200613A (Fermi GBM team, GCN 
27926; Bissaldi et al., GCN 27930; Ohno et al., GCN 27931) with�� AS-32 
telescope of Abastumani observatory in R-filter. The afterglow (e.g., 
Kann et al., GCN 27935; Kennea et al., GCN 27936; Pozanenko et al., GCN 
27937; Izzo et al., GCN 27939; Zhu et al., GCN 27943) is detected in a 
stacked image. Preliminary photometry of the afterglow is following

Date,���������� UT start, t-T0, Exp.,�� Filter, OT,������ Err., UL
 �������������������������������������� (mid, days)

2020-06-15�� 17:44:15 2.53029 49*60�� R������������ 20.47�� 0.11�� 21.9

The photometry is based on nearby SDSS DR12 stars
SDSS-DR12_id�������������� R(Lupton)
J101149.76+454320.7 12.404
J101245.45+455119.1 13.328
Looking for U.S. government information and services? Visit