Astrophysics

INTEGRAL

Completed

Image: NASA · Public domain · Wikimedia Commons

Launched: 17 Oct 200204:41:00 UTC
End declared: 28 Feb 2025
Duration: 22 years 4 months
Destinations: High Earth orbit

ESA's gamma-ray observatory, which observed for more than 22 years. It studied black holes, neutron stars and the gamma-ray glow of the Milky Way, and helped pinpoint the 2017 neutron-star merger first detected in gravitational waves.

Milestones

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20052010201520202025

Spacecraft

INTEGRAL

Telescope

Completed

Observatory with a gamma-ray imager and spectrometer, supported by X-ray and optical monitors.

Launch mass: 3,954 kg
Dry mass: 3,414 kg
Size: 6 m × 3.2 m, span 16 m
Power: Solar
Built by: Alenia Spazio
End declared: 28 Feb 2025
Designator: 2002-048A

Mission details from esa.int.