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GCN Circular 19133

GRB 160303A: RAPTOR Observations During Gamma-Ray Emitting Interval
2016-03-03T19:05:45Z (8 years ago)
James Wren at LANL <>
J. Wren, W.T. Vestrand, P. Wozniak, and H. Davis
of Los Alamos National Laboratory report:

The RAPTOR network of robotic optical telescopes made observations of Swift
trigger 677495 (Beardmore, et al., GCN 19126).  The burst location was within
the field of our wide-field monitor located in Maui, HI, which began a 10 s
integration of the location beginning at 10:54:38.19 UT, 3.86 s before the
Swift trigger time and during the gamma-ray emitting interval.  We do not
detect an optical counterpart to a limiting magnitude of 10.5.  Our 3-sigma
limiting magnitudes are based on a comparison of our unfiltered image to the
Tycho-2 V-band catalog.
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