GCN Circular 2877
Subject
GRB041218: optical observations
Event
Date
2004-12-19T18:03:25Z (21 years ago)
From
Arto Oksanen at Nyrola Obs., Finland <oksanen@nyrola.jklsirius.fi>
O. Trondal (otrondal@online.no) Oslo, Norway reports:
"I observed the error region of GRB041218 for the INTEGRAL burst GRB041218
(Mereghetti et al., GCN 2858) with my 25cm Schmidt-Cassegrain telescope and
unfiltered CCD (MX916) under clear sky conditions.
I took 8 unfilterd 60 s images. The afterglow reported by Torii (GCN 2860)
and Gorosabel et. al. (GCN 2861) is visible in the co-added image at RA
01:39:07.57 Dec +71:20:28.5 (2000.0, USNOA2.0 reference, average residual
0.4 arc secs), at magnitude V=18.6 +/- 0.2 using the field calibration by
Henden (GCN 2896).
The observation started 16:07:04 UT and ended 16:15:51 UT on December 18,
2004.
Here is image and animation with DSS1 :
http://www.geocities.com/Odd_Trondal/grb041218.htm"