CGRO/COMPTEL: Low-Level Gamma-Ray Data and Sky Maps

COMPTEL low-level data and maps from the Compton Gamma Ray Observatory (CGRO) mission. The dataset is produced by NASA HEASARC and allows selection of data from the Imaging Compton Telescope, which conducted the first all-sky survey in the 0.75-30 MeV energy range. Interactions are recorded via a two-stage Compton collision process, with the instrument having a wide field of view and angular resolution under optimal conditions of about 1 degree.

Use Cases

• Localizing gamma-ray point sources based on event correlation and annulus location data.
• Creating sky maps in the 0.75-30 MeV energy range using correlated event data.
• Analyzing energy spectra of solar flares or bright cosmic gamma-ray bursts between 0.1-10 MeV.
• Studying neutrons from solar flares using the instrument's measurement capabilities.

Strengths

• Data originates from the first all-sky survey in the 0.75-30 MeV energy range.
• Instrument has a wide field of view of about 1 steradian and an angular resolution under optimal conditions of about 1 degree.
• Energy resolution ranges from 5-10% at 1 MeV.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration, NASA HEASARC

Collection Method

Collected by the COMPTEL instrument on the Compton Gamma Ray Observatory (CGRO) satellite.

Time Range

Covers the CGRO mission Phase 1 period.

Freshness

Last updated 2026-03-13 19:44:42.320468; freshness should be verified.

Geography

All-sky coverage.