GCN Circular 7935
Subject
GRB 080703A: ROTSE-III Detection of Optical Counterpart
Date
2008-07-03T19:06:08Z (16 years ago)
From
Eli Rykoff at UCSB <erykoff@physics.ucsb.edu>
E.S. Rykoff (UCSB), B. E. Schaefer (Louisiana State), report on behalf
of the ROTSE collaboration:
ROTSE-IIIa, located at Siding Spring Observatory, Australia, responded
to GRB 080703A (Swift trigger 315819). The first image was at 19:00:45.1
UT, 31.5 s after the burst (11.1 s after the GCN notice time). The
unfiltered images are calibrated relative to USNO A2.0. We detect a 14.7
magnitude, steady source with coordinates:
06:47:12.7 -63:13:08.6 (J2000), with positional
uncertainty of 1" or better
start UT mag mlim(of image)
----------------------------------
19:00:45.1 14.7 15.9
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/gsb315819_3a00_img.jpg Note that the object
marked 18 is the candidate in question.
Continuing observations are in progress.
