Fermi GBM Trigger Catalog: Gamma-Ray Burst and Flash Observations

All triggers observed by the 14 detectors of the Fermi Gamma-ray Burst Monitor (GBM), including 12 sodium iodide and 2 bismuth germanate detectors. The catalog is automatically updated within about a day of data processing by NASA's HEASARC, with latency requirements of 1 day for triggers and 3 days for bursts. Data originates from the Fermi GBM Instrument Operations Center and Fermi Science Support Center, provided as FITS files.

Use Cases

• Studying the temporal and spectral properties of gamma-ray bursts based on trigger data from 14 detectors.
• Analyzing Terrestrial Gamma-ray Flash (TGF) events using the specific algorithms mentioned for the BGO detectors.
• Comparing burst localization methods based on the cosine-like angular response of the NaI detectors.
• Investigating the latency and classification pipeline between the automated Trigger Catalog and the human-reviewed Burst Catalog.

Strengths

• Data is sourced directly from the Fermi Gamma-ray Burst Monitor Instrument Operations Center (GIOC) and Fermi Science Support Center (FSSC).
• Catalog is updated automatically within about a day of new data being processed.
• Includes triggers from 14 specialized detectors covering a broad energy range up to 40 MeV.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration (NASA), Fermi Gamma-ray Burst Monitor Instrument Operations Center (GIOC), Fermi Science Support Center (FSSC).

Collection Method

Observations from the Fermi spacecraft's 14 GBM detectors, processed by a central Data Processing Unit (DPU).

Freshness

Last updated 2026-03-13 16:58:09.420599; freshness should be verified.