GCN Circular 11494
Subject
GRB 101225A (Swift trigger 441015): optical upper limit
Date
2010-12-25T21:51:06Z (13 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
M. Andreev, A. Sergeev (Terskol Branch of Institute of Astronomy),
A.Pozanenko (IKI) on behalf of larger GRB follow up collaboration report:
We observed the field of the Swift trigger 441015 = GRB 101225A? (Racusin
et al, GCN 11493) with Zeiss-600 telescope of Mt.Terskol observatory.
In the XRT error circle (Racusin et al, GCN 11493) we do not detect any
sources down to R=21.5 (3 sigma):
UT (mid time), Exposure, Filter, ULimit
19:46 21 x 120s R 21.5
The combined image can be found at
http://grb.eam.ru/Swift_441015/Trigger_441015_Zeiss600.jpg
