Space telescopes·JAXA / NASA / ESA

XRISM

ActiveLaunched in 2023·Low Earth orbit

A Japanese X-ray observatory measuring X-ray spectra with unmatched precision, to map the hot gas in galaxies and black-hole jets.

Main objectives

Did you know?

Its Resolve spectrometer cools its detectors to 50 millikelvin — colder than interstellar space.

Timeline

Sep 07, 2023

Launch

H-IIA lift-off from Tanegashima.

Oct 01, 2023

First light

Commissioning of the Resolve and Xtend instruments.

May 30, 2024

First high-resolution spectra

Observations of NGC 4151 and supernova remnant N132D.

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Resolve

High-resolution X-ray microcalorimeter.

Xtend

Wide-field X-ray imaging camera.

Mass2,300 kg

OrbitLow Earth orbit (550 km)

Cooling50 mK for Resolve

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MeasurementMajor
First high-resolution X-ray spectra
XRISM delivered its first high-resolution spectra, including active galaxy NGC 4151 and supernova remnant N132D.
May 30, 2024JAXA/XRISM ↗
MeasurementNotable
First high-resolution spectra
Observations of NGC 4151 and supernova remnant N132D.
May 30, 2024
MilestoneNotable
First light
Commissioning of the Resolve and Xtend instruments.
Oct 01, 2023

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