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GCN Circular 5220

Subject
GRB 060605: ROTSE-III Detection of Optical Counterpart
Date
2006-06-05T18:25:27Z (18 years ago)
From
Eli Rykoff at U of Michigan/ROTSE <erykoff@umich.edu>
E.S. Rykoff (U Mich), B. E. Schaefer (Louisiana State), report on behalf 
of the ROTSE collaboration:

ROTSE-IIIa, located at Siding Spring Observatory, Australia, responded 
to GRB 060605 (Swift trigger 213630). The first image was at 18:16:33.3 
UT, 48.7 s after the burst (5.4 s after the GCN notice time). The 
unfiltered images are calibrated relative to USNO A2.0. We detect a 16.3 
magnitude, steady source with coordinates:

      21:28:37.3      -06:03:30.6    (J2000)

start UT    	mag     mlim(of image)
----------------------------------
18:17:18.0     16.3     16.5


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/gsb213630_3a001-010_key.jpg

Continuing observations are in progress.
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