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Recently updated GRBs

GRB 250314A

Thumbnail of GRB 250314A

GRB 161104A

Thumbnail of GRB 161104A

GRB 180727A

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GRB 260204A

Thumbnail of GRB 260204A

GRB 250725A

Thumbnail of GRB 250725A

Burst Analyser — BAT-XRT-UVOT light curves

Due to planned network maintenance, there may be interruptions to the www.swift.ac.uk website and related services on Tuesday 21st July 2026. This work is part of routine but essential infrastructure maintenance. We apologise for any inconvenience.

This website contains BAT, XRT and UVOT fluxed light curves of all GRBs observed by Swift. The flux conversion is time-dependant and accounts for spectral evolution. See the online documentation for details

In January 2016 the Burst Analyser was modified to include a new plot: the observed flux density. This plot, which includes UVOT data when available, is the first plot on the individual target pages. See the online documentation for details.

NEW: Guidelines for downloading XRT GRB products in bulk.

Select a GRB:

Either choose a recent GRB from the thumbnails above or use one of the options below.

1) Thumbnails of all bursts: flux density (10 keV) | flux (0.3-10 keV) | flux (15-50 keV).

Usage

If using these products please cite Evans et al. 2010, and use this acknowledgment.