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Suzaku (Astro-E2) is a Japanese (ISAS/JAXA) astronomy satellite. Suzaku is Japan's fifth X-ray astronomy satellite and the third for which the US has provided a significant part of the scientifc payload. It will monitor the universe in the 0.3-700 keV X-ray band, in conjunction with the Chandra (NASA) and XMM-Newton (ESA) satellites. Suzaku is designed to obtain precise measurements of high-energy processes in stars, supernova remnants, galaxies, clusters of galaxies, and the environments around neutron stars and black holes. Suzaku is equipped with X-ray telescopes and two instruments: The XIS (X-ray Imaging Spectrometer) and the HXD (Hard X-ray Detector). Suzaku also carries a third instrument, the XRS (X-ray Spectrometer), but the XRS lost all its cryogen before routine scientific observations could begin.

Suzaku is the recovery mission for ASTRO-E, which did not achieve orbit during launch in February 2000. The 1,600 kg, 500 W, octagonal (2 m x 5 m), triaxially-stabilized spacecraft carries six instruments, covering the sky between 60 degrees and 120 degrees away from the Sun. The mission has significant participation from NASA and MIT.

Alternate Names

  • Astro-E2
  • 28773

Facts in Brief

Launch Date: 2005-07-10
Launch Vehicle: M-5
Launch Site: Uchinoura Space Center, Japan
Mass: 1600 kg
Nominal Power: 500 W

Funding Agencies

  • Japan Aerospace Exploration Agency (Japan)
  • National Aeronautics and Space Administration (United States)


  • Astronomy

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Mr. H. InoueProject ManagerNagoya University
Dr. Nicholas E. WhiteProgram ScientistNASA Goddard Space Flight
Dr. Hideyo KuniedaProgram ScientistNagoya University
Dr. Richard L. KelleyMission Principal InvestigatorNASA Goddard Space Flight

Other Sources of Suzaku Information/Data

Project Home Page (JAXA)
Suzaku Guest Observor Facility (HEASARC)

X-ray Imaging Spectrometer (XIS) (MIT)
X-Ray Spectrometer (XRS) (NASA GSFC)
Hard X-ray Detector (HXD) (U. Tokyo)

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