Tag: astronomy and space

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #April2022 | #CMS #ChinaMannedSpace the crew #神州三号 #Shenzhou13 #Takionauts #CSS #ChinaSpaceStation #TianheCoreModule ground Preparations of returning home to #China #InnerMongolia on the Week of 16th April 2022 to #DongfengAerospaceCity  ..

kevinjamesngLeave a comment

中国空间站 On currently on December 2021, the Belt and Road Initiative CNSA –China National Space Administration  CSS China Space Station in which on a three to six months setting up a new home of the first three Shenzhou 13 in which spending up to on for the further construction and verifications of the systems of the CSS –China Space Station 2021 launch calendar in which currently the three Takionauts current Shenzhou 13 ……  Preparations for the six months of extension of the China Space Station  In which the currently it remains awaiting for the crew of setting up home in conducting fun scientifically onboard中国空间站..  China Space station …..

 On the 16th April 2022 Saturday in between times of 09:35-10:05 hour’s morning Hong Kong SAR Beijing Time, Shenzhou13 will be back on earth. Wishing them a safe return home. In which from 9:35 to 10:05 on April 16, 2022, flying is prohibited in the area surrounded by the following four points near the Jiuquan Satellite Launch Center, which is presumed to be the landing of the Shenzhou 13 manned spacecraft.


A0790/22 – A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY:
N4212E09730-N4212E10342-N4012E10342-N4012E09730 BACK TO START.
ALL ACFT SHALL BE FORBIDDEN TO FLY INTO THE RESTRICTED AREA.
VERTICAL – LIMITS: GND-GND UNL, 16 APR 01:35 2022 UNTIL 16 APR 02:05 2022.
CREATED: 14 ​​APR 05:41 202

The Shenzhou 13 Takionauts have been on orbital trip in space for half a year in which  On October 16, 2021, Shenzhou 13 successfully launched, sending astronauts Zhai Zhigang, Wang Yaping and Ye Guangfu into space. After being stationed in the Tiangong, walking out of the cabin, giving lectures in the Tiangong, and celebrating the New Year in space… More than 180 days in orbit, the Shenzhou-13 Takionauts will return home in the near future after making many firsts.

The cockpit operator Su Liming is likely to be the first Takionaut to see after landing individual  . To this end, he kept asking his seniors for advice, practicing over and over, and “excitedly and nervously” imagined the scene after opening the hatch. Because it is very important to balance the internal and external air pressure when opening the cabin, he also figured out a small method: deflate the tires, listen carefully to the “呲” sound, and help mastering his skills……

The return home for  is very different  for Shenzhou 13 than for Shenzhou 12  is expected to return quickly in 5  five earth orbits Shenzhou 13 Takionaut return Countdown. As China- People’s Republic of China manned spacecraft with the longest stay in orbit, Shenzhou 13 will return the fastest More than a day, and Shenzhou 13 will perform a rapid return around the earth 5 times for the first time in just a few hours….

If Shenzhou 13 returns this time, compared to Shenzhou 12, we are the first to implement for this 5-lap orbits quick return, the previous design was 11 orbital laps.


The entire return process of the Shenzhou 12 manned spacecraft lasted more than a day, and it was shortened to a few hours for the Shenzhou 13. On the premise that the orbit change and the flight movements are not reduced, it is a challenge for the ground measurement and control personnel. , for the spacecraft, it is also a challenge. Shenzhou 12 and Shenzhou 13 belong to the same batch of spacecraft. From three months to six months, the long-term docking time in orbit has continued to increase, which has gradually verified the performance and safety of Chinese manned spacecraft. The key to realizing the six-month long standby time of Shenzhou 13 is the realization of information grid connection and energy grid connection between the space station and the spacecraft, as well as the latest thermal control design…….

Shenzhou 13 goes home in 5 steps  When it comes to the return of the spacecraft, it is a technical task # Shenzhou 13 goes home# roughly divided into 5 steps: ①Separation and evacuation: people get on the “Shenzhou” spacecraft, and The space station assembly is separated; ② Braking and de-orbiting: the spacecraft enters the return orbit from the original flight orbit through attitude adjustment, braking, and deceleration; ③ Freewheeling: waiting for the re-entry opportunity, the spacecraft’s propulsion module and the return module are separated; ④ Re-entry into the atmosphere : The return cabin passes through the black barrier and goes through the test; ⑤ Landing: open the parachute, reverse thrust, and land. Going home soon……

Photography: The return capsule of the Shenzhou 12 manned spacecraft successfully landed and stowed away at the Dongfeng Landing Site…

Images and visuals are from their respectives.

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #CLEP #April2022 | #VonKarmanCrater #LunarMission #Change4 #Yutu2 Lunar adventuring the latest research results of Chang’e-4 featured on #ScienceRobotics #ScientificExploration …..

kevinjamesngLeave a comment

As of Month of April 2022, The CNSA –China National Space Administration CLEP- China Lunar Exploration Program  Belt and Road Initiative Lunar Mission……Chang’e-4 with Yutu two the Lunar rover still working exploring more than moved 1142.39 meters on the other side of the moon on the 103 Kilometers Diameter Von Karman Crater in which is least than two length by length fifty five Kilometers Hong Kong –Macau- Zhuhai Bridges …. Working Exploring the Crater on the other side of the Moon Chang’e Luna….

Figure 1 The trajectory of the “Yutu” 2 lunar rover (cover of Science Robotics magazine)

​​ The latest research results of Chang’e-4 …..At the beginning of 2022, by the State Key Laboratory of Robotics and Systems of Harbin Institute of Technology, Beijing Aerospace Flight Control Center, State Key Laboratory of Remote Sensing Science, Institute of Aeronautical and Astronautical Information, Chinese Academy of Sciences, China Academy of Space Technology, Ryerson University in Canada, etc. A number of units cooperated and published the title of “A 2-year locomotive exploration and scientific investigation of the lunar farside by the Yutu-2 rover” in the internationally renowned academic journal “Science Robotics”. and Scientific Exploration)” cover paper.

Fig. 2 Analysis of physical and mechanical properties of lunar soil based on “Yutu” 2 wheel-earth interaction

The team estimated the mechanical properties of the lunar soil based on the information on the interaction between the lunar rover wheel and the lunar surface and the ground mechanical model. The results show that the pressure-bearing properties of the lunar soil regolith are similar to the dry sand and sandy loam on the earth, and are similar to those in the American Apollo program. Compared with typical lunar soil, it has stronger pressure bearing characteristics. Large lumps of soil were observed adhering to the wheels of “Yutu 2” in images from different locations, while the wheels of “Yutu 2” basically had no clay phenomenon, indicating that the lunar soil cohesion near the landing area of ​​Chang’e 4 is relatively large , the reason may be that it contains a higher proportion of aggregates, which makes soil particles more likely to agglomerate after being rolled by wheels.

Figure 3 The impact craters and rocks discovered by the “Yutu-2” observation

The research is based on my country’s lunar exploration missions and faces engineering scientific issues. The relevant results can provide theoretical and technical support for future lunar exploration missions. This research was supported by the National Natural Science Foundation of China (51822502, 91948202, 41771488), the National Key Research and Development Program (2019YFB1309500), and the “111” Innovation and Talent Introducing Program (BP0719002). The link to the original publication of the results: https://www.science.org/doi/10.1126/scirobotics.abj6660
At present, Chang’e-4 is on the 41st night of the moon. The rover has moved 1142.39 meters, and the two devices and one satellite are in good condition.

Images and visuals are from Chinese lunar exploration project  CNSA- China National Space Administration also from their respectives…!

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #April2022 | #WenchangSpacecraftLaunchCenter #文昌航天發射場 | with a Long history and an extraordinary mission of the times ……

kevinjamesngLeave a comment

On a very 11th April 2022 in Hainan Province –China –People’s Republic of China…. Clear Day  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 China Manned Space  that China National Space Administration………….. is preparing for the final assembly of the arrived Chang Zheng 7 Long March Carrier Rocket Yao 5 arrivingly at Wenchang Spacecraft launch site According to the latest news from the China Manned Space Engineering Office, the Chang Zheng- Long March 7 Yao-5 carrier rocket for the Tianzhou-4 launch mission has completed all the research and development work before leaving the factory and is safe today Arrived at Wenchang Space Launch Site. After that, the Long March 7 Yao 5 carrier rocket will carry out the final assembly and testing of the launch site area together with the Tianzhou 4 cargo spacecraft that has arrived earlier. 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.

WITNESS WITH WENCHANG Spacecraft Launch Center 2022 This year, the first launch of China’s space station in orbit will be carried out at Wenchang Spacecraft Launch Center in the swirling coconut forest. As the “youngest” among the four major launch sites in China, she has a long history and an extraordinary mission of the times. She witnesses this era together with us ….

Images and visuals are from their respectives.

#MadeInChina #中國製造|#WFST #WideFeildSurveyTelescope April2022 | #UniversityofScienceandTechnologyofChina incredible #China- #PeoplesRepublicOfChina has built a new advance Next generation of #SkySurvey #Telescopes with a primary mirror diameter of 2.5 meters and 720 million pixels Scientific Imaging Detector Test Platform Completed”

kevinjamesngLeave a comment

On 14th April 2022 China – People’s Republic of China has incredibility  has built a new generation of sky survey telescopes with a primary mirror diameter of 2.5 meters and 720 million pixels with Another Chinese Tianyan opened? Qinghai Lenghu will build a survey telescope with a primary mirror diameter of 2.5 meters….  Which If you use a lens with a diameter of 2.5 meters and a photosensitive element with 720 million pixels to make a telescope, how far can it see? How clear will things be?

​​

China – People’s Republic of China is currently manufacturing such a telescope. It is co-operated by the University of Science and Technology of China and the Haixi Mongolian and Tibetan Autonomous Prefecture of Qinghai Province. One of the sites of the astronomical observatory), the Wide Field Survey Telescope, whose full name is the University of Science and Technology of China – Purple Mountain Observatory of the Chinese Academy of Sciences Large Field Survey Telescope, English name Wide Field Survey Telescope, referred to as WFST, it is China – People’s Republic of China The new generation of astronomical survey telescopes developed by the State, a major national astronomical observation infrastructure, will become the optical time-domain survey telescope with the strongest ability to survey the sky in the northern hemisphere after completion.

​According to the news from the University of Science and Technology of China on April 11, the research and development team composed of the university and the Purple Mountain Observatory of the Chinese Academy of Sciences has completed the development of the primary mirror CCD290 camera and CCD test system. The relevant results have been published in the world famous astronomical instrument. In the publication “Journal of Astronomical Telescope Instruments and Systems”, this innovative research result laid the foundation for the development of the main focus camera for the large field telescope.

The large-field survey telescope is a new generation of astronomical telescopes developed in my country. The diameter of its main mirror is 2.5 meters. The design adopts the international leading main focus optical mode, which can provide a large field of view, high precision and wide-band sky survey capabilities. , its photosensitive element is a large area array 720 million pixel splicing CCD detector, which is spliced ​​by 9 CCD290-99 chips, the imaging array reaches 9K x 9K, and the imaging area reaches 92.2 mm × 92.4 mm, with ultra-low noise readout capability , the readout noise can be less than 5 electrons at a readout rate of 500Kpix/s.

The center of the above picture is the main focus camera, and the right is the CCD290 camera

​The main focus camera with

​Some people call the large-field survey telescope “another Chinese sky eye”. It is true that both have strong sky survey and observation capabilities, but the two are very different. In terms of observation methods, the Chinese sky eye (FAST) It does not move, basically just patrols the night sky with the rotation of the earth. It is impossible to fix the viewing angle at a certain point in the night for detailed observation, but WFST can dynamically patrol the night sky and can fix a certain celestial object on the sky. long time observation.

Schematic diagram of WFST structure

The electromagnetic spectrum observed by the two

Chinese Sky Eye

​As the strongest large-field optical survey telescope in the northern hemisphere, WFST is a “three-in-one” powerful prime focus camera that integrates “scientific imaging, wavefront detection, and guide star sensing”. It can discover countless galaxies, quasars and stars in the huge cosmic space, and can also monitor large-scale celestial collisions, supernova explosions, stellar helium flashes, fast radio bursts and other transient sources in distant cosmic spaces, as well as the Milky Way and nearby galaxies. Appearing variable stars and other celestial bodies, small celestial bodies such as asteroids and comets in the Kuiper belt in the solar system and far away can also be seen. In addition, the structure and formation and evolution history of galaxies can be judged by observing the star stream in the Milky Way and nearby galaxies.

​

References :

The April 11 article in “Science China Journal” “The Large Field Survey Telescope Scientific Imaging Detector Test Platform Completed”

Images and visuals are from their respectives

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #April2022 | #CMS #ChinaMannedSpace the crew #Shenzhou13 #Takionauts #CSS #ChinaSpaceStation #TianheCoreModule Preparations of returning home to China.. .. .

kevinjamesngLeave a comment

中国空间站 On currently on December 2021, the Belt and Road Initiative CNSA –China National Space Administration  CSS China Space Station in which on a three to six months setting up a new home of the first three Shenzhou 13 in which spending up to on for the further construction and verifications of the systems of the CSS –China Space Station 2021 launch calendar in which currently the three Takionauts current Shenzhou 13 ……  Preparations for the six months of extension of the China Space Station  In which the currently it remains awaiting for the crew of setting up home in conducting fun scientifically onboard中国空间站..  China Space station …..

On the week of 12th April 2022 it’s the countdown month of the Shenzhou 13 Takionaut crewThe six-month “business trip” of the Shenzhou 13 Takionaut crew is coming to an end. Before returning, the astronauts still have to count and transfer materials, clean and maintain the cabin environment, pack down items, set the unmanned flight mode, check the working status of the spacecraft, and monitor the body. In order to ensure the astronauts return to the earth safely and smoothly, the ground will work with the astronauts to complete various preparations for the return…

Before returning, the Takionaut still have to count and transfer materials, clean and maintain the cabin environment, pack down items, set the unmanned flight mode, check the working status of the spacecraft, and monitor the body. In order to ensure the Takionaut return to the earth safely and smoothly, The ground will work with the astronauts to complete various preparations for the return….

Images and visuals are from their respectives.