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Hitomi in orbit

Hitomi in orbit

Date: 02 February 2016
Satellite: Hitomi
Depicts: Artist's impression of Hitomi in orbit
Copyright: JAXA

Artist's impression of the Hitomi satellite in orbit.

Hitomi (known as ASTRO-H prior to launch) is a high-energy astrophysics space observatory, developed by the Japan Aerospace Exploration Agency (JAXA) in collaboration with institutions in Japan, the US, Canada, and Europe.

It was launched on 17 February 2016 on an H-IIA rocket, which placed it in a circular low-Earth orbit, with an altitude of about 575 km and an inclination of 31°. The yellow curve indicates the satellite's orbit, while the red curve indicates the Earth's equator.

Covering the energy range between 0.3 and 600 keV, Hitomi will study the dynamics of hot gas in galaxy clusters, the accretion of matter onto supermassive black holes at the cores of distant galaxies, and the acceleration of cosmic-ray particles up to very high energies.

Last Update: 1 September 2019
23-Jun-2024 08:03 UT

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