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GCN Circular 14205

GRB 130215: ROTSE-III Detection of Optical Counterpart
2013-02-15T01:54:24Z (11 years ago)
Heather Flewelling at IfA/Hawaii <>
W. Zheng (UC Berkeley), H. Flewelling (IfA/Hawaii), report on behalf of the
ROTSE collaboration:

ROTSE-IIIb, located at McDonald Observatory, Texas, responded to GRB 130215
(Swift trigger 548760). The first image was at 01:43:07.3 UT, 697.1 s after
the burst (8.3 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:

     02:54:00.7      +13:23:43.7    (J2000), with positional uncertainty of
1" or better

start UT    	mag     mlim(of image)
01:43:07.3     14.2     16.2

A jpeg image is available at Note that the object
marked 8 is the candidate in question.

Continuing observations are in progress.
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