The BAT instrument aboard the Swift spacecraft located a possible Gamma ray burst (GRB 050528)
“The Liverpool Telescope reacted to the SWIFT trigger 130679. The automatic detection mode resulted in a non-detection. We remind that our field-of-view is 4.6 arcmin wide.
The earlier, robotic upper limit is R>17.2 at 2.5 minutes after the possible GRB reported time (limited by observing conditions). Further observations have been performed, and quick inspection reveals no obvious candidates. Analysis is in progress.”