Tag: Long March 5 Carrier Rocket

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI #August2022 | #嫦娥五号#CLEP The #Moon #Change5 #LunarMission #MonsRumker #LunaExploration the New research achievements – Chinese scientists reveal the composition of lunar soil minerals and space wind at the landing site of Chang’e 5…

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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

China – People’s Republic of China’s first lunar sampling return mission, Chang’e-5 (CE-5), landed on the young KREEP terrane Mons Rumker in the northern part of the Ocean of Storms, and successfully brought back 1731 grams of lunar soil.

 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

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #August2022 | #WenchangSpacecraftLaunchCenter #文昌航天發射場 | #ChinaSpaceStation #实验舱 #文天 #Wentian The very cute five meter smart #RoboticArm preparing for a #EVA #Spacewalk soon..

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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..

The Wentian six meter small robotic arm has been “online” on the 8th August 2022 in which The small robotic arm installed outside the Wentian experimental cabin module shoulders the heavy responsibility of independently completing the installation and replacement of extravehicular loads and other care operations. Recently, the small robotic arm successfully completed the on-orbit test with the support of the ground personnel. Let us look forward to its wonderful performance in the future!

Wentian experimental cabin small manipulator arm completed on-orbit test – Wentian experimental cabin small manipulator arm is more sophisticated, adopts a 7-DOF symmetrical configuration, and has an end effector at each end; its arm is nearly five meters long and can be effectively operated The space is about 5 meters, and the maximum load is 3 tons; it can be used alone or form a combined robotic arm with a large robotic arm; it supports astronauts’ out-of-vehicle activities, extravehicular status inspection, extravehicular cargo transfer and installation, extravehicular maintenance and repair, and load 6 application tasks including care and maintenance of optical facilities.

Yesterday on the 10th August 2022 practically On-orbit test of Chinese space station extravehicular arm recently, the Chinese space station extravehicular manipulator has carried out on-orbit test. At present, the space station assembly is in stable condition, and the Takionauts are in good physical and mental state, and they are preparing for the follow-up mission Space Walk EVA- Extravehicular Activities.

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#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #August2022 | #WenchangSpacecraftLaunchCenter #文昌航天發射場 | #ChinaSpaceStation #梦天 #Mengtian #ExperimentalModule #ChinaSpaceStation arrived at #Wechang #HainanProvince ….

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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 center CNSA –China National Space Administration  On 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…

Previously  at Tianjin –China –People’s Republic of China…. Heading towards district area of the Wenchang – Wenchang Spacecraft launch center CNSA –China National Space Administration  On the 30th July 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…. The Mengtian Experiment Module, departed from Tianjin by sea to China in Wenchang, Hainan launch site. The Mengtian experimental module will be launched by the Chang Zheng – Long March 5B Yao-4 rocket in October this year 2022, thus completing the construction of the T-shaped structure of China’s space station known as Tiangong Space Station…

　　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….

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#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #August2022 | #WenchangSpacecraftLaunchCenter #文昌航天發射場 | #ChinaSpaceStation #Shenzhou14 Crew trying out the 实验舱 #文天 #Wentian #ExperimentalCabinModule

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On the 6th August 2022 … After two months of trip or two months into a six months mission on the China Space Station after the docking of the Wentian Experimental Cabin Module…..  the Shenzhou 14 crew Takionaut has not finished unpacking the courier packages of the all new Wentian Experimental Cabin Module..  Today this week it’s been the very “busiest space Takionaut trio” continued to organize onboard supplies for 5.5 hours.

At present, the Wentian experimental cabin basically meets the occupancy requirements, and in which Takionaut 蔡旭哲 Cai Xuzhe has lived in the new sleeping cabin for some time. In addition to carrying out various tasks, are carrying out various work around the establishment of the environmental control and life protection system of the Wentian experimental cabin and the activities of leaving the cabin. Today, they also organized the various modules of the space station for more than 5 hours, hard working in which they also complete 80 minutes of physical training every day. Hard working in which testing sleeper on the Chinese space station Wentian module …

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.…  

Images and visuals are from their respectives.

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #July2022 | #CMS #ChinaMannedSpace #CLEP #ChinaLunarExplorationProgram the Advance Next Generation #LunaMannedLanding #ChangZheng #LongMarch #CZ-5DF #CarrierRockets #ReusableCarrierRocket The first flight is not far away …..

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中国空间站 On currently on 29th July 2022 2022, the Belt and Road Initiative CNSA –China National Space Administration   on the currently developments of the  latest progress of China’s Chang Zheng – LongMarch manned lunar landing carrier  rockets Science and Technology Daily reporters learned from the First Academy of China Aerospace Science and Technology Corporation on July 28 2022 that the 702 Institute of the Academy recently successfully completed the multi-machine parallel static-motion joint test of my country’s new generation of manned launch vehicles. It strongly supported the smooth transition of the development of this type of rocket to the initial stage.

The first flight is not far away! China- People’s Republic of China’s first-generation moon landing Carrier rocket began to be prototyped, with a near-Earth capacity of 70 tons….  

China- People’s Republic of China’s moon landing rocket has completed the multi-engine parallel static and dynamic test and began to manufacture, and the first flight may not be far away

​​China’s new generation of manned rockets has made important progress! According to news from the First Academy of China Aerospace Science and Technology Corporation published by the “Science and Technology Daily” and other media on July 28th 2022, the 702 institutes affiliated to the academy have recently successfully completed the multi-machine parallel static-motion joint test of my country’s new generation of manned launch vehicles. The first step of this type of rocket will be transferred to the initial sample development stage.

At present, my country’s only manned rocket is the Long March 2F rocket, which is especially responsible for transporting China- People’s Republic of China’s Shenzhou spacecraft and Takionauts to the sky. My country’s new generation of manned rockets is a rocket with larger and more advanced capacity. It is also the “921 rocket” that netizens have often said over the years. In fact, its real code name is “CZ-5DF”, which means Chang Zheng- Long March 5. The series of lunar rockets are exactly the rockets prepared for my country’s manned lunar landing.

According to the published data, this rocket is about 100 meters high. After successful development, it will be the highest rocket before the appearance of the Long March 9. It is about the height of a 33-story building, which should be higher than the building you live in. Well, isn’t it shocking?

​And it will also be the largest rocket before the appearance of the Long March 9 carrier rocket, with a diameter of 5 meters, the same as the Long March 5, but its shape is very different from the Long March 5, because it adopts the CBC configuration, but It is not a “triple version of Chang 5”, it is not the configuration of the three core-stage rockets of the current Long March 5, because it is not composed of three core-stage rockets of the Long March 5. There are only two YF-77 liquid hydrogen-oxygen engines with a thrust of only 100 tons. The thrust of the Fat Five mainly relies on four bundled boosters. Each booster is equipped with two YF-100 engines with a thrust of 240 tons. , the thrust of the four boosters reached 960 tons, which together contributed to the 1060-ton thrust of the Long March-5 first-stage rocket.

​The new generation of manned rockets with  This type of rocket weighs about 2,200 tons and is a three-stage and a half configuration. The capacity of the Earth-Moon transfer orbit will not be less than 27 tons, which can meet the capacity requirements for launching China’s new generation of manned spacecraft (within 25 tons in weight). It can also meet the upward mission of large spacecraft in low-Earth orbit, because the orbital carrying capacity of low-Earth orbit will reach more than 70 tons.

​Take China’s space station as an example. After the Wentian experimental module was docked, the total weight of China’s space station assembly has now reached 66 tons, and China’s new generation of manned rockets can be sent into orbit with one launch mission. Zhu Xiquan, deputy chief designer of the 702 Institute, said: The successful completion of the parallel static-dynamic joint test of my country’s new generation of manned rockets marks the first time that my country has broken through the large-load static-dynamic joint test technology of launch vehicles. The test with the largest scale, the most technical difficulty and the most complex test process has laid a solid foundation for the new generation of manned launch vehicles to adopt the parallel technology of multiple high-thrust engines.

​According to the plan, this rocket will be the main launch vehicle for manned moon landing missions in China in the next 20 to 30 years, so it can also be called China’s first-generation “moon landing rocket”. It is significant, marking that China’s manned lunar landing rocket has entered a substantial manufacturing moment. After the manufacturing is completed, it will be a test flight. It was previously reported that the first flight will be completed before 2025. It can be seen that the first flight is not far away! Moreover, this type of rocket will also expand the recovery and reuse capabilities of the take-off stage in the future, that is, to create a reusable rocket like Musk’s Falcon rocket, which can also greatly reduce the launch cost. ​

References :”Science and Technology Daily” July 28 article “China’s new generation of manned rockets has made important progress “

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