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Recently updated GRBs

GRB 260114A

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GRB 260104A

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GRB 251230A

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GRB 260101A

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GRB 251129A

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Burst Analyser — BAT-XRT-UVOT light curves

The www.swift.ac.uk website and all related services will be offline on Tuesday 27th January 2026, from 9:00 am UT for up to three hours. This is for routine but essential maintenance. Any running processing will be terminated at this point; to balance minimising the service interruption with the risk of killing jobs, user-requested job submission will be disabled at 00:00 UT on the 27th. 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.