GCN Circular 14475
Subject
GRB 130427A: T100 observations
Event
Date
2013-04-27T22:39:19Z (13 years ago)
From
Eda Sonbas at NASA/GSFC <edasonbas@gmail.com>
E. Sonbas (Adiyaman Univ.), T. Guver (Sabanci Univ.), E. Gogus (Sabanci
Univ.), H. Kirbiyik (TUG) report on behalf of a larger collaboration
We observed the field of Swift GRB 130427A (Maselli et al. GCN#14448)
with the 1.0 meter T100 telescope (TUBITAK National Observatory,
Antalya - Turkey), starting April, 27, 20:39:28 UT (~ 13 hours after
the trigger). Observations were carried out in the R filter under good
weather conditions. The afterglow is clearly detected in 60 s R band
images at a position that is consistent with Elenin et al. GCN#14450
Using USNO-B1 star USNO-B1 1177-0254824 (RA= 11:32:31.23, Dec=
+27:42:23.02 ) in the field, the magnitudes of the OT were estimated as
follows;
t-t0 (hr) exp.(s) filt mag err (+/-)
12.850 60 R 16.2 0.05
12.871 60 R 16.6 0.03
12.874 60 R 16.3 0.03
12.877 60 R 16.5 0.01
Further observations using the same filter are ongoing.
We are grateful to the TUBITAK National Observatory staff for promptly
scheduling the observations and their technical support.