Shulou(Shulou.com)11/24 Report--

Thank you, Mr. Air, a netizen of CTOnews.com, for your clue delivery! CTOnews.com, January 11, according to a CCTV news report, it was learned from the Micro Satellite Innovation Research Institute of the Chinese Academy of Sciences that the space new technology test satellite, the first satellite of China's "Innovation X" series, recently released the second batch of scientific and technological achievements.

The space new technology experiment satellite (SATech-01) CTOnews.com, the first star of "Innovation X", has learned that the second batch of scientific achievements recently obtained by the satellite mainly include the acquisition of China's first image of the solar transition region, the detection of the brightest gamma-ray burst so far, and the first global magnetic field survey map.

The second batch of scientific and technological achievements of China's new space technology test satellites released this time are as follows:

46.5nm EUV imager obtains the first image of solar transition region in China 46.5nm EUV Solar Imager (SUTRI) is the first international 46.5nm solar imager based on multilayer narrow-band filter technology, which is used to detect the solar transition region of about 500,000 degrees (the layer between the solar chromosphere and the corona). It is jointly developed by the National Astronomical Observatory in conjunction with Peking University, Tongji University, Xi'an Institute of Optical and Precision Machinery and Micro Satellite Innovation Research Institute. Since the payload was turned on on August 30, 2022, the super-1.6TB detection data have been obtained, and the first solar transition region detection in China has been successfully realized. This is also the first time in nearly half a century that human beings have taken a complete image of the sun in the 46.5nm band.

The images taken by SUTRI clearly show the network organization of the transition region, the coronal ring system of the active region, prominences and filaments, coronal holes and other structures. The observation characteristics of these structures show that SUTRI is indeed the structure of the transition from the solar lower atmosphere to the corona, as expected. SUTRI has detected multiple flares, jets, prominence outbursts and coronal mass ejection events, indicating that its data are suitable for the study of various types of solar activity. In addition, SUTRI also found that there are about 500,000 degrees of matter flow toward the solar surface in the active region, which plays an important role in the material circulation of the solar atmosphere. At present, all functions of SUTRI are normal. After the completion of in-orbit testing and calibration, the scientific data observed by SUTRI will be open to domestic and foreign heliophysics and space weather counterparts.

A solar burst event observed by SUTRI on September 23, 2022 | Source: SUTRI scientific team High Energy burst Explorer (HEBS) captured the brightest gamma burst to date. 21:17 Beijing time, along with China's discerning Eye satellite and the High altitude Cosmic Ray Observatory, the brightest gamma ray burst to date (numbered GRB 221009A) was detected by the High Energy burst Explorer (HEBS) developed by the Institute of High Energy Physics of the Chinese Academy of Sciences.

According to the accurate measurements of HEBS, the gamma-ray burst is more than 10 times brighter than the brightest gamma-ray burst ever observed, breaking many records such as the highest isotropic energy and the maximum isotropic peak luminosity of gamma-ray bursts. Due to the extremely high brightness of the gamma ray burst, most of the detection equipment in the world have serious instrument effects such as data saturation loss and pulse accumulation, so it is difficult to obtain accurate measurement results. With its innovative detector design and novel high-latitude observation mode setting, HEBS has withstood the test of high counting rate and obtained a high time resolution light curve and a wide energy spectrum from 10 KV to 5 MeV. The precious accurate measurement results of HEBS are of great significance for revealing the origin and radiation mechanism of gamma ray bursts.

The EP Pathfinder Lobster Eye X-ray Imager (LEIA) developed by the National Astronomical Observatory and the Shanghai Institute of Technical Physics also successfully observed this gamma-ray burst on October 12 and detected the X-ray afterglow of the gamma-ray burst. This is also the first time in the world that a gamma ray burst has been detected with a lobster eye X-ray telescope.

The high-energy burst explorer (HEBS) discovered and accurately measured the brightest gamma-ray burst so far, breaking many records for the first time in space application of the domestic quantum magnetometer and obtaining the global magnetic field map the home-made quantum magnetometer (CPT) and its outstretched arm jointly developed by the National Space Science Center of the Chinese Academy of Sciences and Shenyang Institute of Automation can realize high precision global geomagnetic vector and scalar measurement.

On November 7, 2022, the multi-stage sleeve non-magnetic stretching arm was successfully deployed, and the probe of each sensor was extended to a distance of about 4.35m. The effective detection data were obtained by CPT atomic / quantum magnetometer probe, AMR magnetoresistive magnetometer probe and NST star sensor at the top of the telescopic arm. The synchronous detection technique of magnetic field vector and attitude was verified in orbit for the first time. The peak and peak value of magnetic measurement noise is less than 0.1nT. The first space verification and application of domestic quantum magnetometer are realized.

First Global Magnetic Field Survey Map of Quantum Magnetometer | Source: space load and platform New Technology achievements of the key Laboratory of Solar activity and Space Weather in the Space Center. The multi-functional integrated camera developed by the New Space Technology Department of Changchun Institute of Optics and Precision Machinery and Physics of the Chinese Academy of Sciences adopts a new system of multi-pupil optical system based on common aperture for the first time. The space optical remote sensing observation which integrates visible light, long-wave infrared and color low light is realized in orbit. The camera was started on September 24, 2022, and the first 170km × 42km wide ground remote sensing image was successfully obtained. A new mode of multispectral multimodal remote sensing imaging can be realized by a single camera at the same time, which provides a technical reserve for the future development of highly integrated space optical remote sensing payload in China.

Image source: Changchun Institute of Optics and Precision Machinery and Physics, the heterogeneous multi-core intelligent processing unit jointly developed by Institute of Semiconductors, Institute of Automation, Institute of Micro Satellite Innovation and Institute of Aeronautics and Astronautics of Zhejiang University has also achieved the first batch of results. The low-power edge computing intelligent remote sensing vision chip of Semiconductor Institute realizes the high-speed intelligent target detection of remote sensing images, and the general intelligent system of the Institute of Automation verifies the modular and flexible hardware architecture of heterogeneous multiprocessors based on high-speed switching network. The domestic AI system of Zhejiang University is equipped with cell segmentation algorithm and aircraft recognition algorithm, and the data results are consistent with those of the ground twin system, and the computing power reaches 22Tops under the condition of 10 watts of power consumption, which verifies the on-orbit intelligent image processing capability of domestic AI devices.

Schematic diagram of edge computing remote sensing vision chip for remote sensing target detection | Source: the expandable radiator of the Institute of Semiconductor, Chinese Academy of Sciences has been successfully applied in orbit for the first time. The radiator actuator has successfully completed more than 60 unfolding and closing movements. The continuous five-track dynamic test results show that the loop heat pipe-expandable radiator integrated system has good start-up performance during the load working period. The continuous expansion and folding of the radiator can realize the large-scale regulation of the heat dissipation capacity in orbit.

Test results of continuous five-track intelligent thermal control of loop heat pipe-expandable radiator integrated system the space components radiation effect test platform developed by the National Space Science Center runs well on load, and the components all work normally during the test period.

In the coming time, several new propulsion systems carried by the space new technology test satellite will also be tested in orbit, and the four scientific payloads on the satellite have also entered routine observation, and more scientific and technological achievements will be obtained one after another.

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