GCN Circular 10821
Subject
GRB 100418A: Maidanak optical observations
Date
2010-06-01T20:31:58Z (15 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (SAI MSU), M. Ibrahimov, R. Karimov (MAO), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 100418A (Marshall et al. GCN 10612)
with AZT-22 telescope of Maidanak observatory on (UT) Apr. 22 (22:34 --
23:35) and May 7 (22:49 -- 23:27). The optical afterglow (Marshall et al.
GCN 10612, Filgas et al. GCN 10617) is detected in single images on Apr. 22
and in a stacked image on May 7. The photometry of the afterglow based on
USNO-B1.0 star 1014-0271368 (RA(J2000) = 17:05:26.42 Dec(J2000)=
+11:27:32.9) assuming R=17.32 is following:
T0+ Filter, Exposure, seeing, mag.
(mid, d) (s)
4.0793 R 11x300 0.7 20.56 +/- 0.02
19.0821 R 6x300 1.3 22.05 +/- 0.25