GRBweb is a catalog of gamma-ray bursts that combines the data from a wide range of detectors.
For easy access, we provide the GRB data in a compact SQLite file that can be easily opened in Python.
Alternatively, the summary table of GRBs can be used to quickly check to properties of selected GRBs..
GRBweb is updated on a daily basis. The last update occurred on 2026-11-06 09:32:02 (UTC).
Accessible as SQLite or txt file
Constructed using Python, SQL & HTML5
GRBweb is updated every day with new GRBs. Updates that also changed
GRBs that were already in the catalog are announced here.
2026-10-29
Trigger times and positions are now also taken from the GCN circulars of SVOM and Einstein Probe, and 651 circulars that had been missed since 2023 were added. The catalog grew from 9,218 to 9,345 GRBs and the positions of 838 GRBs were refined.
Read more2026-08-17
All tables taken from other catalogs were rebuilt from their latest versions. About 300 GRBs received updated values and 22 GRBs disappeared; 16 of these were restored on 2026-10-29.
Read more2026-07-29
IPN circulars that report a ring on the sky were read as if its centre were the position of the GRB. Correcting this changed the position of 34 GRBs and removed 2.
Read more