Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. See news and announcements

GCN Circular 4211

Subject
GRB 051109: ROTSE-III Detection of Possible Counterpart
Date
2005-11-09T01:21:11Z (19 years ago)
From
Eli Rykoff at U of Michigan/ROTSE <erykoff@umich.edu>
E.S. Rykoff (U Mich), B. Schaefer (Louisiana State), W. Rujopakarn (U 
Mich), F. Yuan (U Mich), R. Quimby (U Texas), report on behalf of the 
ROTSE collaboration:

ROTSE-IIIb, located at McDonald Observatory, Texas, responded to GRB 
051109 (Swift trigger 163136). The first image was at 01:12:52.7 UT, 
32.1 s after the burst (4.7 s after the GCN notice time). The unfiltered 
images are calibrated relative to USNO A2.0. We detect a new object, not 
visible in the DSS (second epoch), with coordinates:

      22:01:15.3      +40:49:23.3    (J2000)

start UT    	mag     mlim(of image)
----------------------------------
01:12:52.7     15.4     16.8


Continuing observations are in progress.
Looking for U.S. government information and services? Visit USA.gov