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Tsubame is small satellite mission built by Tokyo Institute of Technology, Tokyo University of Science and JAXA to measure polarization of hard X-ray photons (30-200 keV) from gamma-ray bursts using azimuthal angle anisotropy of Compton-scattered photons and to demonstrate new technologies.

The objectives of Tsubame are: on-orbit demonstration of newly developed Micro Control Moment Gyroscopes (CMGs),polarized gamma-ray burst (GRB) observation using a Hard X-Ray Compton Polarimeter (HXCP) and Wide field Burst Monitors (WBMs) with high-speed attitude maneuvering using Micro-CMGs,AND Earth observation with a small high-resolution optical camera.

Alternate Names

  • 40302

Facts in Brief

Launch Date: 2014-11-06
Launch Vehicle: Dnepr
Launch Site: Yasni, Russia

Funding Agency

  • Tokyo Institute of Technology (Japan)


  • Astronomy

Additional Information

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

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