Tag: CAST

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #January2021|#酒泉衛星發射中心 #JiuquanSatelliteLaunchCenter Launching the International Iconic #LongMarch4C #ChangZheng4C #CarrierRocket in Launching deploying #EarthSciences #RemoteSensing #NanoSatelllites #Satellites ……

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A successful launch on 1247 midday Hong Kong- Beijing time on 29th January 2021 CNSA –China National Space Administration launching from one of its many launch Complexes from China used the Long March 4C – Chang Zheng 4C carrier rocket at the Jiuquan Satellite Launch Center – Inner Mongolia- China-People’s Republic of China…. successfully launched Remote Sensing No. 31 Satellite Group 02.. Launching  the Long March 4 C –Chang Zheng 4C carrier rocket was launched at China- People’s Republic of China Jiuquan Satellite Launch Center in a “three-star” way Remote Sensing 31st Group 02 satellites were successfully sent into the scheduled orbit and the launch mission was a complete success. This mission is the 359th launch of the Long March series of carrier rockets. 遥感31号02 satellites successfully launched……!

Duration of the week tracking of the Long March- Chang Zheng  4C Carrier Rocket the Tracking Ship Yuanwang 7 ship successfully completed the remote sensing 31st group 02 satellite marine measurement and control mission] At 12:47 on January 29, Beijing time, my country successfully launched Remote Sensing 30 using the Long March 4C carrier rocket at the Jiuquan Satellite Launch Center No. 02 satellites. The Yuanwang 7 ship, which was thousands of miles away in the ocean, successfully measured and controlled its satellites in a single ship, and the satellite successfully entered the predetermined orbit. Ten minutes after the rocket was launched, the target successfully entered the measurement and control arc of Yuanwang 7 ship. Yuanwang 7 found the target in a timely manner, captured and tracked the target in a stable manner, successfully recorded various data, and successfully completed the orbital section and operation section……

Telemetry and remote control missions of rockets and satellites…… Yuanwang 7 will return at full speed after completing this mission, in order to allow the crew to reunite with their families early in the New Year and ease the pressure of the crew for long-term offshore operations so that they can invest in the aerospace industry of the motherland in a more full spirit……

Image and visuals are from Weibo..

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#January2021 #CAST #ChinaAerospaceScienceAndTechnologyCorporation | #FirstAcademy manufacturing that first large #CarrierRocket durable diameter composite liquid oxygen tank…..

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During the month of January 2021 – CNSA – China National Space Administration CAST – China Aerospace Science and Technology Corporation – China – Peoples’ Republic of China Printed out  The first domestic 3.35m diameter composite liquid oxygen tank was born….. That Printing occurred on  January 22, my country’s first 3.35m diameter composite material tank prototype was born in the First Academy of Aerospace Science and Technology Group. The storage tank is mainly used in liquid oxygen environment. Compared with the metal storage tank, it can reduce the weight by 30% and has higher strength. It can greatly improve the structural efficiency and carrying capacity of the rocket. It is a new type of lightweight storage tank. The birth of the prototype of the composite material storage tank marks that my country has broken the foreign monopoly and has become one of the few countries in the world that has the ability to design and manufacture composite material storage tanks.

Successfully developing  two new types of rocket storage tanks, which can increase the capacity of rockets] Recently, my country has made new progress in the development of new type of carrier rocket storage tanks: China Aerospace Science and Technology Corporation First Academy has assembled domestic superior forces and successfully developed my country’s first 3. The 35-meter diameter aluminum-lithium alloy storage tank engineering prototype and the composite material storage tank principle prototype will further reduce the weight of the rocket body and increase the rocket’s capacity.

“The capacity of the launch vehicle is as large as the space stage.” The storage tank occupies more than 50% of the weight and space of the rocket’s structure, and the fuel filled inside it accounts for more than 90% of the total weight of the rocket. The weight reduction of the tank is of great significance for improving the carrying capacity of the rocket.

Not long ago, the First Institute successfully developed my country’s first 3.35-meter-diameter aluminum-lithium alloy rocket storage tank, which has passed the tests of various links and has good performance, and initially has engineering application conditions. The storage tank uses the third-generation high-performance aluminum-lithium alloy. Compared with the current international mainstream aluminum-copper alloy storage tank, the strength is increased by about 30%, and the structural weight is reduced by more than 15% under the same conditions.

According to the material classification, aluminum alloy storage tanks are divided into the first generation aluminum-magnesium alloy storage tank, the second generation aluminum-copper alloy storage tank and the third generation aluminum-lithium alloy storage tank. Compared with traditional aluminum-copper alloys, the strength and rigidity of aluminum-lithium alloys have been significantly improved, but the density has dropped by 3%-5%, which is precious for rockets whose capacity is calculated by weight.

Due to the relatively high price of aluminum-lithium alloy, the current world aerospace powers mainly use aluminum-lithium alloy in the final stage of the rocket. The weight loss of the last stage of the rocket is 1 kg, which is equivalent to an increase of 1 kg in the rocket carrying capacity.

In the future, China – People’s Republic of China  3.35-meter aluminum-lithium alloy storage tank is intended to be mainly used in the final stage of a new generation of carrier rockets to improve the structural efficiency and carrying capacity of the Long March 5, Long March 7 and Long March 8 rockets. Lay the foundation for the development of a new generation of manned rocket.

In addition to metal materials, the application of composite materials can also greatly reduce the weight of the tank. On January 22, also it’s the first 3.35-meter-diameter composite material storage tank prototype was born in the First Academy of Aerospace Science and Technology Group. The storage tank is mainly used in liquid oxygen environment. Compared with the metal storage tank, it can reduce the weight by 30% and has higher strength. It can greatly improve the structural efficiency and carrying capacity of the rocket. It is a new type of lightweight storage tank.

The density of the composite material is about 1.7g/cm3, the density of the aluminum-lithium alloy is 2.7g/cm3, and the specific strength of the composite material is 6 times that of the aluminum-lithium alloy. Compared with the metal materials used in the current rocket tank structure, composite materials have the advantages of lower density, higher specific strength, and better fatigue resistance.

In addition, the composite material tank also has the advantages of fewer production processes and short cycle times, which can further reduce the overall cost of the rocket.

At present, composite storage tanks are mainly used in a specific liquid oxygen environment and can be used in the final stage of a rocket. In the follow-up, the development team will also carry out a series of assessment tests and evaluations on the 3.35-meter composite material storage tank principle prototype, further carry out key technology research, improve the technical maturity of the composite material storage tank, and promote the application of the composite material storage tank in rockets. , To truly give play to the major advantages of composite material storage tanks in terms of light weight and high strength, to help the future rocket structure significantly reduce weight and improve carrying capacity.

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #January2021|#西昌衛星發射中心 # Xichang Satellite Launch Center – Successfully launching the iconic #LongMarch3B #ChangZheng3B #CarrierRocket to deploy the #Tiantong1 #satelliteMobileCommunication system…..

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On  the 20th January 2021 Wednesday early mid-morning  CNSA _China National Space Administration -China – People’s Republic of China At 0:25 Hong Kong –Beijing Time on an early morning past midnight of  January 20th , 2021, China successfully launched the Tiantong-1 03 satellite using the Long March 3B carrier rocket at the Xichang Satellite Launch Center Sichuan Province  Lift off. The satellite successfully entered the scheduled orbit, the mission was a complete success, and China’s space launch has a good start in 2021…..

The Tiantong-1 satellite mobile communication system is a satellite mobile communication system independently developed and constructed by my country. It consists of a space segment, a ground segment and user terminals. The Tiantong-1 03 satellite was developed by the China Academy of Space Technology. After being launched into orbit, it will form an integrated world-earth mobile communication network with the ground mobile communication system. Users in most waters of the Indian Ocean provide mobile communication services such as all-weather, all-day, stable and reliable voice, short message and data. This mission is the 358th space flight of the Long March series of carrier rockets.

  During the launching Xi’an Satellite Measurement and Control Center Xiamen Observation and Control Station successfully completed the Tiantong-1 03 satellite launch measurement and control mission] “Xiamen found the target!” “Xiamen telemetry signal is normal!” January 20, 2021 0 At 25:25, the China-developed Tiantong-1 03 satellite carrying the Long March 3B carrier rocket was launched at the Xichang Satellite Launch Center, and the satellite successfully entered the scheduled orbit. Soon after the rocket lifted off, the Xiamen Observation and Control Station located on the southeast coast found the captured target in time, and continuously transmitted the rocket telemetry data to the Xi’an Satellite Observation and Control Center, successfully completing the launch measurement and control mission. This is the first space launch measurement and control mission completed by the station in 2021….

As well to other tracking  mobile installations .. Yuanwang 5 ship successfully completed the Tiantong-1 03 satellite marine monitoring and control mission] Early this morning, my country successfully launched the Tiantong-1 03 satellite into the air with the Long March 3B carrier rocket at the Xichang Satellite Launch Center. The Yuanwang 5 ship under the T&C Department took part in a single-ship test in the scheduled waters of the Pacific Ocean to provide key monitoring and control support for rockets flying into the sky and satellites into orbit. The China Satellite Maritime Department successfully achieved its first maritime measurement and control mission in 2021. It is understood that after completing this mission, the Yuanwang 5 ship will continue to go to the next sea area for measurement and control, and the crew will welcome the arrival of the Spring Festival at sea…..

Images and visuals are from Weibo..

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #CLEPS #January2021 | #VonKarmanCrater #LunarMission #Change4 #Yutu2 making another Luna adventuring more than 600 Meters #LunaExploration Summary of 736-day scientific achievements milestone …..

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As of 7th January 2021 Thursday, The CNSA –China National Space Administration Belt and Road Initiative Lunar Mission……Chang’e-4 successfully awakened and entered the 26th day of the work period….Waking up  Chang’e 4 awakened smoothly and entered the 26th day of work….. With a new round of dawn on the back of the moon, Chang’e 4 ushered in the 26th day of the month, and the “Yutu 2” lunar rover at 10 o’clock on January 7 waking up at 29 minutes, the lander woken up at 03:13 on January 8. As of today, Chang’e-4 has been in operation for 736 Earth days, continuing to refresh the record of human probes working on the back of the moon.

During the day of this month, the lunar rover will continue to travel towards the basalt distribution area or the impact crater area with high reflectivity (approximately 27m from the current detection point, and there is a degenerated impact crater with a diameter of approximately 160m in the south of the crater), both of which are located in the northwest direction of the current detection point.

With a new round of dawn on the back of the moon, Chang’e 4 ushered in the 26th day of the month. The “Yutu 2” lunar rover awakened at 10:29 on January 7 and the lander at 03:13 on January 8 wake. As of today, Chang’e-4 has been in operation for 736 Earth days, continuing to refresh the record of human probes working on the back of the moon.

During the day of this month, the lunar rover will continue to travel towards the basalt distribution area or the impact crater area with high reflectivity (approximately 27m from the current detection point, and there is a degenerated impact crater with a diameter of approximately 160m in the south of the crater), both of which are located in the northwest direction of the current detection point.

The following exploration activities are planned during the day of this month:

(1) It is preferable to take a panoramic camera ring shot near noon of the moon.

(2) Detection and calibration of infrared imaging spectrometer.

(3) The neutral atom detector is turned on for detection.

(4) Synchronous detection of lunar radar during driving. The scientific research team will continue to conduct scientific analysis on the acquired detection data, and relevant results will be released in time.

 

Previously……. As of 22 December 2020, The CNSA –China National Space Administration Belt and Road Initiative Lunar Mission The “Yutu-2” lunar rover has a mileage exceeding 600 meters, completing the 25th day of work….The Chang’e 4 lander and the “Yutu 2” lunar rover completed the 25th day of the month at 5 o’clock on December 22 and 19:22 on the 21st, respectively. The moon night mode setting was completed according to ground instructions and entered moon night sleep. As of today, the Chang’e-4 lander and the “Yutu-2” lunar rover have been working on the moon for 719 days, and the lunar rover has travelled 600.55 meters in total……

Researchers conduct research and analysis on the detection data obtained in 25 months, and continue to produce scientific results. A recent scientific achievement published in the internationally authoritative academic journal Astrophysical Journal Letters (Xu et al 2020) shows that the lunar neutron and radiation dosimeter mounted on the Chang’e-4 lander detected a solar high-energy particle event on the back of the moon (SEP). This is the first time that a human probe has detected SEP on the surface of the moon, verifying the performance of the instrument, and also made a detailed analysis of the acceleration mechanism and the acceleration source area of the SEP.

Previous observations made by Chang’e-4 indicate that the radiation intensity on the surface of the moon is about 100 times that of the earth (Zhang et al. 2020, Space. Adv.). Since the moon does not have the same atmosphere and magnetic field as the earth, the Galactic cosmic ray (GCR) can easily reach the surface of the moon. Such high-intensity background radiation can cause damage to astronauts working on the surface of the moon. In addition, when solar activity erupts, the solar high-energy particle event will cause the particle flux to increase by thousands of times, and the space radiation will also be greatly enhanced. Therefore, the observation of the arrival of high-energy particles of the sun on the moon is particularly important.

In 2019, the sun is in a very small year, no sunspots have appeared for a long time, and the chance of observing solar high-energy particle events is even smaller. Chang’e-4 captured such an event. The study found that both electrons and protons exhibit good velocity dispersion. By linearly fitting the data points, it is possible to deduce the release time of particles from the acceleration zone and the distance the particles travel in interplanetary space before reaching the moon.

In addition, the proton energy spectrum of this SEP event was further analysed, including the GCR background energy spectrum and the background subtracted energy spectrum. According to the energy spectrum with the background subtracted, the dashed power law spectrum is used to fit it, and it is found that the energy inflection point is about 2.5MeV….

Images and visuals are from Weibo CNSA –China National Space Administration –CLEP- China Luna Exploration Program..

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #December2020 | #Xian – testing out the newest largest #SRB #SolidRocketBooster Segment development to deploy larger payloads ……

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A successful testing on an early Morning  Hong Kong- Beijing time on 30th December 2020 CNSA –China National Space Administration in its Xian testing facilities in which China-People’s Republic of China largest thrust segmented solid rocket engine successfully tested……. This morning, China-People’s Republic of China ‘s first civil aerospace development of China’s first 3.2m3 segmented large solid rocket boosted engine completed the first interview in Xi’an, which is the largest thrust in my country so far Segmented solid rocket motor. The solid engine thrust of this test run reached 260 tons, and the ignition time exceeded 130 seconds.

In the future, it can be applied to my country’s large and heavy rockets to meet the different development needs of my country’s space equipment, manned moon landing, and deep space exploration

China-People’s Republic of China largest thrust segmented solid rocket engine successfully tested] This morning, my country’s first civil aerospace development of China’s first 3.2m3 segmented large solid rocket boosted engine completed the first interview in Xi’an, which is the largest thrust in my country so far Segmented solid rocket motor.


In the future, it can be applied to my country’s large and heavy rockets to meet the different development needs of my country’s space equipment, manned moon landing, and deep space exploration. The solid engine used in this test run has a maximum thrust of 260 tons and adopts a three-stage design. This segmented design can adjust the charge to achieve the coverage of different thrusts, which can meet the needs of the launch vehicle to carry different loads in the future.

Images and visuals are from Weibo..