GCN Circular 8436
Subject
GRB 081029: ROTSE-III Detection of Optical Counterpart
Event
Date
2008-10-29T01:57:59Z (17 years ago)
From
Eli Rykoff at UCSB <erykoff@physics.ucsb.edu>
E.S. Rykoff (UCSB), report on behalf of the ROTSE collaboration:
ROTSE-IIIc, located at the H.E.S.S. site at Mt. Gamsberg, Namibia,
responded to GRB 081029 (Swift trigger 332931, GCN 8435, Sakamoto et
al.). The first image was at 01:45:22.8 UT, 86.0 s after the burst (8.8
s after the GCN notice time). The unfiltered images are calibrated
relative to USNO A2.0. We detect a 16.5 magnitude, fading source with
coordinates:
23:07:05.36 -68:09:19.74 (J2000), with positional
uncertainty of 1" or better
start UT mag mlim(of image)
----------------------------------
01:45:22.8 16.5 17.8
This source is not visible in DSS (second epoch), 2MASS or the MPChecker
database.
A jpeg image is available at
http://www.rotse.net/images/gsb332931_3c011-020_key.jpg Note that the
object marked 36 is the candidate in question.
Continuing observations are in progress.