HXMT satellite has been launched succesefully

HXMT satellite has been launched succesefully at 11 a.m. on June 15 from Jiuquan, China.




HXMT Satellite Payloads Pass Delivery Review

The payload subsystem of the Hard X-ray Modulation Telescope (HXMT) satellite passed its delivery review on 8 August.

The review meeting was held by the China Academy of Space Technology (CAST) that is responsible for the development of the satellite. After listening to the reports and discussion, the review board concluded that all the functions and ports meet with the design requirements. This marks the completion of all research and development work on the payload. The HXMT satellite is planned to launch at the end of this year from the Jiuquan satellite launch center.

The Institute of High Energy Physics (IHEP) is leading the development of the HXMT project as China’s first X-ray astronomical satellite. Based on their innovative direct demodulation image reconstruction method, IHEP scientists LI Tipei and WU Mei proposed this project.

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).

The main scientific objectives of HXMT are to scan the Galactic Plane to find new transient sources and 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.

                                 HXMT Satellite Payloads Pass Delivery Review (Image by IHEP)

HXMT satellite model passed acceptance review

The Proto-Flight Model (PFM) of the HXMT satellite passed the acceptance review on December 16, which marked the approval of the satellite design and the official launch of the satellite production.

A panel of domestic experts reviewed the PFM of the HXMT satellite. The HXMT team reported on the R&D of the satellite PFM and the final design of the satellite. After discussing and reviewing the documents, the panel concluded that all the technical specifications met the mission requirements and the risk was under control. Prior to this review, the HXMT payloads and other segments had already passed the review.

As China's first astronomical satellite, HXMT will perform an all-sky broad band X-ray survey and pointed observations. In the survey, about one thousand hard X-ray sources can be detected, while in the pointed observations some black holes and neutron stars will be studied in details.

The HXMT project was officially approved in 2011 and will be launched in two years from now. As the scientific user of HXMT, the Institute of High Energy Physics leads the development of the payloads and the construction of the scientific ground segments. The China Academy of Space Technology is in charge of the satellite platform.

The mechanical model of HXMT in dynamical test (Image by IHEP)

HXMT Workshop Successfully Held at IHEP

The Workshop on Hard X-ray Modulator Telescope (HXMT) was successfully held at IHEP on April 24th, 2015. More than 40 experts from home and abroad attended the workshop.
The workshop discussed the payload and calibration status of HXMT. The experts spoke highly of the team efforts on the work of ground calibrations, and put forward valuable suggestions on the orbit calibrations as well. Agreement was also achieved on the cross calibrations and the relevant studies.
The workshop was a full success. It was unanimously agreed that this workshop would give a strong push to the R&D and calibration work of HXMT.

CNSA experts reviewed the Hard X-ray Modulation Telescope Project

    A panel of experts led by China National Space Administration (CNSA) visited the Hard X-ray Modulation Telescope (HXMT) Project on August 18, 2011.

    As China's first astronomical satellite, HXMT was officially approved early this year. For such a satellite, the reliability and performance are the top priority. The HXMT researchers reported to the panel on the current status and future plans for the payloads and ground segments, including measures to control the quality of the instruments and software.

    The experts made inquires about the scientific significance of the project, technical specifications of the payloads, as well as the difficulties and problems. Answers were given and detailed explanations were made. Prof. WANG Huanyu, Associate Director of IHEP, also introduced the scientific activities at IHEP and at the Division for Particle Astrophysics.

    After the review meeting, the experts toured the Beijing Electron Positron Collider, the newly-built commissioning hall for HXMT payloads, and HXMT prototypes. The experts were fully convinced that IHEP would be capable to finish the job and achieve the fixed targets of the project.

           experts visit the newly-built commissioning hall for HXMT payloads