I. Bikmaev (KSU/AST), I. Khamitov (TUG),
S. Melnikov, N. Sakhibullin (KSU/AST),
R. Burenin, M. Pavlinsky, R. Sunyaev (IKI),
Z. Eker (TUG), U. Kiziloglu (METU), E. Gogus (Sabanci Uni.)
The optical afterglow of GRB 100418A (Marshall et al., GCN 10612, Filgas
et al., GCN 10617) was observed with Russian-Turkish 1.5-m telescope
(RTT150, Bakirlitepe, TUBITAK National Observatory, Turkey) in April 20/21, 2010,
at moderate seeing conditions.
We obtained a serie of 600 sec and 300 sec images in Rc-band.
The Table gives our Rc value estimation relative nearby USNO-B1.0
star 1014-0271368 (R2Mag=17.32).
April 21, 2010
UT (T-T0), h Rc err
00:48 51.6 20.05 +/-0.03
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