GCN Circular 18656
Subject
GRB 151127A iTelescope observation
Date
2015-12-02T13:35:18Z (8 years ago)
From
Takanori Sakamoto at AGU <tsakamoto@phys.aoyama.ac.jp>
Y. Kitaoka, T. Sakamoto, A. Yoshida (AGU)
We observed the field of GRB 151127A detected by Swift (trigger #665268;
D'Ai et al., GCN Circ. 18643) with the iTelescope.Net (http://www.itelescope.net)
T30 (20" Plane Wave) telescope located at the Siding Spring Observatory (New South
Wales, Australia). 20 images of 60 sec exposures were taken in the R filter
starting from November 27 09:47:56 (UT) about 39.1 minutes after the trigger
and stopped on November 27 10:23:18 (UT). We do not detect the optical afterglow
both in the individual images and the stacked image at the enhanced X-ray afterglow
position (Goad et al., GCN Circ. 18647). The estimated five sigma upper limit of
the combined image (total exposure of 1200 sec) is ~18.2 using the USNO-B1 catalog.