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The main scientific objectives of HXTM (Hard X-ray Modulation Telescope) are to scan the galactic plane to find new transient sources, to monitor the known variable sources, and to observe X-ray binaries to study the dynamics and emission mechanism in strong gravitational or magnetic fields.

There are three main payloads onboard HXMT, the high energy X-ray telescope (20-250 keV, 5100 cm2), the medium energy X-ray telescope (5-30 keV, 952 cm2), and the low energy X-ray telescope (1-15 keV, 384 cm2). All these three telescopes are collimated instruments.

Using the direct demodulation method and scanning observations, HXMT can obtain X-ray images with high spatial resolution, while the large detection areas of these telescopes also allow pointed observations with high statistics and high signal to noise ratio.

It is expected that HXMT will discover a large number of new transient X-ray sources and will study the temporal and spectral properties of accreting black hole and neutron star systems in more details than the previous X-ray missions.

The payload module of the HXMT was developed by IHEP and Tsinghua University, while the satellite bus was developed by the Chinese Academy of Space Technology (CAST) based on the Ziyuan-2 / Phoenix-Eye-2 satellite bus.

Alternate Names

  • 42758

Facts in Brief

Launch Date: 2017-06-15
Launch Vehicle: Long March 4B
Launch Site: Jiuquan, Peoples Republic of China

Funding Agency

  • Chinese Academy of Sciences (Peoples Republic of China)


  • Astronomy

Additional Information

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

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