Currently on the 9th August 2022 Wenchang Spacecraft launch Center China –People’s Republic of China…. Heading towards district area of the Wenchang – Wenchang Spacecraft launch centerCNSA –China National Space AdministrationOn the 9th August 2022 Beijing Time the second component of the Experimental module in which is is delivered to the Wenchang Spacecraft Launch Center, Hainan Province – China – People’s Republic of China….
梦天Mengtian experimental module arrived at Wenchang Launch Site According to the China Manned Space Engineering Office, the second experimental module of the China Space Station – the Mengtian experimental module has completed all the research and development work before leaving the factory and arrived at Wenchang Aerospace recently. Launch site. In the follow-up, the Mengtian experimental module will carry out various final assembly and testing work in the launch site area as planned. At present, the facilities and equipment of the launch site are in good condition, and the systems participating in the test are preparing for various tasks in an orderly manner…
On the 3rd September 2022 Arriving in Wenchang Spacecraft Launch Center from Tianjin City Progressively for the launch mission of the Mengtian experimental module Chang Zheng – Long March 5 Y4 Carrier Rocket arrived safely The Long March 5B Yao-4 carrier rocket for the launch mission of the Mengtian experimental module has completed all the research and development work before leaving the factory, and has recently arrived at the Wenchang Space Launch Site safely. After that, the Long March 5B Yao-4 carrier rocket will carry out the final assembly and test work in the launch site area together with the Mengtian experimental module that has arrived earlier. At present, each participating system in the launch site area is carrying out mission-related preparations as planned.
At present, each participating system in the launch site area is carrying out mission-related preparations as planned. According to the China Manned Space Engineering Office, the Long March 5-B Yao-4 carrier rocket for the launch mission of the Mengtian experimental module has completed all research and development before leaving the factory The work was safely transported to Wenchang Space Launch Site recently. After that, the Long March 5B Yao-4 carrier rocket will carry out the final assembly and test work in the launch site area together with the Mengtian experimental module that has arrived earlier. At present, each participating system in the launch site area is carrying out mission-related preparations as planned
The Mengtian experimental cabin is equipped with a cargo airlock and an outboard deployment test platform. In the future, the scientific test equipment that needs to be installed outside the cabin can be transported to the space station through a cargo spacecraft, and then the load will be sent to the outside of the cabin through the cargo airlock, and the robotic arm or Takionauts will install it on the platform outside the cabin. Realize the continuous update of the extravehicular test project….
On Hainan Province –China –People’s Republic of China…. in the district area of the Wenchang – Wenchang Spacecraft launch center in which the awesome team at one of many CNSA –China National Space Administration that China National Space Administration…………… On 24th July 2022
After Wentian experimental module entered orbit, the status setting was successfully completed. At 3:13 on July 25, 2022, Beijing time, it was successfully connected to the forward port of 天和 Tianhe Core Module. The entire rendezvous and docking process lasted about 13 hours. . This is the first time that two 20-ton spacecraft in my country- China- People’s Republic of China have achieved rendezvous and docking in orbit. …According to the mission plan, the Shenzhou 14 Takionaut crew will then enter the Wentian experimental module….. In which finally docked in early morning time of the 25th July 2022 in with CNSA –Beijing Aerospace City in which co-ordinated the docking maneuverers have achieved rendezvous and docking in orbit.… in which the crew of the Shenzhou 14 staying for six months in construction of the stage one of the China Space station with the additional Mengtian experimental module in which will be delivered on the October 2022 Launch Schedule calendar..
On the week of 27th August 2022, the Takionaut Crew of Shenzhou 14 Crew have been working progressively smoothly on orbit of proceeding in an orderly manner: except for the high altitude in the core cabin scientific experiment cabinets such as microgravity experiment cabinets continue to carry out scientific experiments. In the sky capsule, astronauts “plant vegetables” in orbit and carry out life science experiments. In the airlock cabin, the space suits outside the cabin are neatly placed together….. In which the crew has been preparing for an upcoming EVA in which extravehicular spacesuit in the airlock cabin in preparation….
CNSA –China National Space Administration…………… After Wentian experimental module entered orbit, the status setting was successfully completed. At 3:13 on July 25, 2022, Beijing time, it was successfully connected to the forward port of 天和 Tianhe Core Module. The entire rendezvous and docking process lasted about 13 hours. . This is the first time that two 20-ton spacecraft in my country- China- People’s Republic of China have achieved rendezvous and docking in orbit. …According to the mission plan, the Shenzhou 14 Takionaut crew will then enter the Wentian experimental module….. In which finally docked in early morning time of the 25th July 2022 in with CNSA –Beijing Aerospace City in which co-ordinated the docking maneuverers have achieved rendezvous and docking in orbit.… in which the crew of the Shenzhou 14 staying for six months in construction of the stage one of the China Space station with the additional Mengtianexperimental module in which will be delivered on the October 2022 Launch Schedule calendar..
Environmental control and life support (referred to as “environmental control and life support”) is an essential system for any manned spacecraft, and a key technology that must be broken through to achieve manned spaceflight. From the Shenzhou spacecraft’s expedition to space to the Chinese space station building a dream universe, the environmental control and life protection system directly guarantees the life safety of Takionauts in orbit, and has achieved a major leap from “supply type” to “regeneration type”. What role does this “people-oriented” system play in the operation of the space station?
Resource regeneration, endless life
In order for Takionauts to have a “feel good” experience on the space station, the environmental control and life protection system of the space station must first have the necessary guarantee conditions for manned people, that is, the basic environmental control function that has made great contributions from the beginning of the Shenzhou spacecraft mission. Including the environmental control of the Takionauts activity area, such as air supply and pressure regulation in the cabin (total atmospheric pressure, oxygen content), ventilation and purification (wind speed flow field, carbon dioxide and various trace harmful gas concentrations, atmospheric cleanliness) and temperature and humidity control It also includes life support functions such as bedrooms, toilets, domestic water, and collection and management of excretion wastes, which are necessary for daily life . At the same time, a lot of noise reduction optimization work was carried out in the cabin. By adding sound-absorbing covers, sound-insulating panels, vibration isolators, and shock-absorbing pads, a quiet and comfortable environment was created for the Takionauts.
Takionauts wear noise-cancelling wireless headphones to work
Not only that, from the perspective of the development process of manned spacecraft, it is the consensus of the international manned spaceflight development to build a space station, make astronauts stay in the space station sealed cabin for a long time, and conduct various space science experiments (experiments). To achieve this goal, the most critical core technology is the physical and chemical regenerative environmental control and life insurance (referred to as “regenerative life insurance”) technology . The Shenzhou spacecraft and space laboratory use non-regenerative life protection technology, and in order to achieve the goal of long-term economic operation of China’s space station and long-term astronaut residency, so that resources such as water and oxygen can be recycled, the project has developed a key technology of regenerative life protection technology. Validated and successfully put into use.
The regenerative environmental control and life protection system of my country’s space station is to establish a recyclable system similar to the earth’s environment in a sealed cabin. The Takionauts’ sweat and exhaled water vapor are collected through condensation and drying components, and purified into regenerated water for drinking. Collect and process it into drinkable pure water; use the circulating water to electrolyze oxygen through the electrolysis oxygen system; react the carbon dioxide collected in the cabin with the hydrogen produced by the electrolysis of water to obtain water again. Currently, the system includes 6 regeneration subsystems , namely, electrolytic oxygen production subsystem, carbon dioxide removal subsystem, trace harmful gas removal subsystem, urine treatment subsystem, water treatment subsystem and carbon dioxide reduction subsystem.
The composition of the space station regeneration and life support system
In the previous manned flight missions during the verification phase of the key technologies of the space station, the regenerative life support system has achieved the regeneration and utilization of resources such as oxygen and water in the space station through the operation of the first five subsystems, making the material closure of water resources more than 80%. After the Shenzhou 14 Takionauts crew entered the space station, the three Takionauts completed the assembly and testing of the carbon dioxide reduction subsystem carried by the Tianzhou 4 upward with the cooperation of the ground personnel.
The Takionauts check the conversion status of the water tank in the carbon dioxide reduction subsystem, and connect the water tank to the treatment system for purification, and finally generate pure reclaimed water
The carbon dioxide reduction subsystem can further reuse the carbon dioxide produced by Takionauts’ breathing and act on the space station. Through the stable operation of the system, about one kilogram of water can be recovered in the space station every day, increasing the material closure of water resources to more than 90%. That is to say, more than 90% of the drinking water of Takionauts in orbit is produced by reclaimed water, and less than 10% is supplied by the ground through the cargo spacecraft .
The technological development of the environmental control and life protection system has always been aimed at the further improvement of the material closure. The researchers are conducting research on a new generation of physicochemical regeneration technology, such as further extracting water from the urine residual liquid produced by the urine treatment system, further recycling the water, and improving the The material closure of water resources; in the future, new technologies, such as biological regeneration technology, will be used to achieve food regeneration and achieve a higher level of environmental control and life protection technology, so as to maximize the recycling of space station materials.
Calcium removal components needed for Takionauts to operate urine processing subsystems
Perfect match, efficient integration
The Shenzhou 14 Takionauts crew recently completed the installation and testing of the on-orbit assembly equipment for the environmental control and life protection system in the Wentian experimental cabin. As the backup of Tianhe core module, the Wentian experimental module cooperates with the core module to manage and control the manned environment of the entire space station in a unified manner during the daily operation of the space station, including the function of regeneration and life support. The core module and the sky-questioning module are connected to form a combination, which achieves the effect of perfect combination and efficient integration. It can not only play the role of double insurance as a “fixing sea god needle”, but also lay a solid foundation for the future reliable operation of the space station.
Regenerative life support system ensures Takionauts drink healthy water in space
In addition, the Wentian experimental cabin, as the first experimental cabin of the space station, will carry out a large number of scientific experiments. The environmental control and life protection system will contribute to these experiments, providing the guarantee of vacuum resources and exhaust gas emissions required for the experiments. The Wentian experimental cabin has a separate “personnel-specific airlock” airlock. As the main exit hatch, it has a larger space and is more convenient for Takionauts to exit the cabin. Repressurization and gas re-use technologies will also be validated and functional again.
Inside the airlock cabin of the Wentian experimental cabin
With the life “guardian umbrella” of the environmental control and life protection system, Takionauts can carry out a series of tasks such as material handling, living environment arrangement, and space science experiments on the space station, so as to create a more reasonable, spacious and comfortable “space home”. Adapt to the needs of longer-term manned space missions in the future.
CNSA –China National Space Administration…………… After Wentian experimental module entered orbit, the status setting was successfully completed. At 3:13 on July 25, 2022, Beijing time, it was successfully connected to the forward port of 天和 Tianhe Core Module. The entire rendezvous and docking process lasted about 13 hours. . This is the first time that two 20-ton spacecraft in my country- China- People’s Republic of China have achieved rendezvous and docking in orbit. …According to the mission plan, the Shenzhou 14 Takionaut crew will then enter the Wentian experimental module….. In which finally docked in early morning time of the 25th July 2022 in with CNSA –Beijing Aerospace City in which co-ordinated the docking maneuverers have achieved rendezvous and docking in orbit.… in which the crew of the Shenzhou 14 staying for six months in construction of the stage one of the China Space station with the additional Mengtianexperimental module in which will be delivered on the October 2022 Launch Schedule calendar..
On the week of 19th August 2022 Friday it pleasantries to relax af a long day’s work in which a great earth vlogging view breath takingly Join us Searching for the beauty of manned spaceflight What is beauty? Beauty is nature, beauty is stars, beauty is curiosity about space, beauty is a smooth and smooth robotic arm, beauty is a trace of peace of mind looking towards home… 400 kilometers away, the beauty of human wisdom and the enduring beauty of the earth’s nature complements each other……
More than One year ago on 24th November 2020, the Chang Zheng – Long March Five Carrier Rocket Launched away in CNSA – China National Space Administration China Wenchang spaceport launch, Change Five Lunar probe into orbit, opened up towards China – People’s Republic of China’s first celestial bodies sample return trip from Mons Rumker on the Lunar Surface of the moon New research achievements – Chinese scientists reveal the composition of lunar soil minerals and space wind at the landing site of Chang’e 5
Predecessors have used orbital remote sensing data to conduct extensive research on the topography and material composition of the CE-5 landing area. Recently, a series of sample analyses have advanced the understanding of lunar chronology, late lunar volcanism, and magma evolution mechanisms. Different from large-scale remote sensing observation and fine sample analysis, in situ spectral detection can not only provide local background information of the sampling area, but also be beneficial to study the characteristics of lunar soil in undisturbed and disturbed states. The Lunar Mineral Spectrometer (LMS) carried by the CE-5 lander acquired the visible-infrared reflectance spectrum of the lunar soil, which provided important data support for the study of the material composition of the lunar soil and space weathering.
Researchers from the Key Laboratory of Solar Activity and Space Weather of the National Space Science Center of the Chinese Academy of Sciences (hereinafter referred to as the “Space Center”) used the Chang’e-5 LMS in situ detection data to analyse the material composition and maturity, spectral parameters and unmixing of the lunar soil at the landing site The study shows that the mafic minerals in the lunar soil are mainly clinopyroxene, which is consistent with the chemical analysis and orbital spectral analysis results of the CE-5 sample in the laboratory.
The optical maturity and submicroscopic iron (SMFe) of the lunar soil did not change significantly before and after the rocket purge and shovel sampling. This study provides spectral evidence that the lunar soil surface experienced rapid tillage and adequate mixing.
Figure 1: (A) The measured field of view of the LMS spectral data is shown in the red box. Panoramic cameras show images of (B) lunar soil and (C) rocks, respectively. (D) LMS reflectance spectrum curve.
The red box in Figure 1A shows the observation field of LMS spectral data, where D11 is the rock block, and D14-D16 are the lunar soil spectra after shovelling. The magnified images of lunar soil and rocks are shown in Figure 1B and C, and Figure 1D shows the reflectance spectrum curve after preprocessing such as radiometric calibration and thermal correction.
Through the spectral parameter map of the absorption features at 1 μm and 2 μm (Fig. 2A), it was found that with the increase of calcium content, the absorption positions of pyroxene at 1 μm and 2 μm moved to the long-wave direction, and the lunar soil and rocks at the CE-5 landing site For high-calcium pyroxene, this is further confirmed in the 1 μm absorption center and the ratio projection of the 2 μm to 1 μm absorption area (Fig. 2B).
In this study, the Hapke model and the sparse unmixing algorithm were used to invert the mineral composition and abundance of the in situ spectra. The inversion results were consistent with the analysis results of CE-5 samples and the inversion results of orbital remote sensing (Fig.
Figure 2: LMS in situ spectral composition analysis
Space weathering is a common phenomenon of spectral reddening and darkening caused by micrometeorite impacts and solar wind injection on non-atmospheric celestial bodies.
First, the maturity of the lunar soil at the CE-5 landing site was qualitatively analyzed by using the projection maps of the spectral slopes R950/R750 and R1600/R700 and R750 and R700 respectively (Fig. 3A, B). It was found that compared with the lunar soil at the CE-4 landing site, the The lunar soil in the CE-3 and CE-5 landing areas is relatively immature, which may be related to the fact that CE-3 and CE-5 landed on a young impact crater sputter carpet (<100 Ma).
This study further calculated the optical maturity (OMAT, Fig. 3C) and submicroscopic iron (SMFe, Fig. 3D) content, and found that there was no significant change in lunar soil maturity before and after the rocket purge, and before and after scooping, indicating CE-5 landing The lunar soil in the district has experienced an equivalent exposure history within the scooping depth (<3cm).
This result is consistent with the radionuclide analysis results of the Apollo drilling samples and the simulation results of the lunar soil tillage model. This study provides spectroscopic evidence that the lunar soil surface undergoes rapid tillage and adequate mixing.
Figure 3: LMS In Situ Spectral Maturity Analysis
Space weathering is a common phenomenon of spectral reddening and darkening caused by micrometeorite impacts and solar wind injection on non-atmospheric celestial bodies.
First, the maturity of the lunar soil at the CE-5 landing site was qualitatively analyzed by using the projection maps of the spectral slopes R950/R750 and R1600/R700 and R750 and R700 respectively (Fig. 3A, B). It was found that compared with the lunar soil at the CE-4 landing site, the The lunar soil in the CE-3 and CE-5 landing areas is relatively immature, which may be related to the fact that CE-3 and CE-5 landed on a young impact crater sputter carpet (<100 Ma).
This study further calculated the optical maturity (OMAT, Fig. 3C) and submicroscopic iron (SMFe, Fig. 3D) content, and found that there was no significant change in lunar soil maturity before and after the rocket purge, and before and after scooping, indicating CE-5 landing The lunar soil in the district has experienced an equivalent exposure history within the scooping depth (<3cm).
This result is consistent with the radionuclide analysis results of the Apollo drilling samples and the simulation results of the lunar soil tillage model. This study provides spectroscopic evidence that the lunar soil surface undergoes rapid tillage and adequate mixing.
上述研究成果
已成功发表于国际权威学术期刊
Earth and Planetary Science Letters上。
Via CNSA China Space Administration –CLEP China Lunar Exploration project management office
