China Outer Space Science, Technology and Explorations: News & Updates

[Beast]

From 卡尔达瓦里希 via weibo.

Picture of Tianhe core module of Chinese Space Station. Preparing for launch set on 29th April by LM-5B rocket. Roll out of the rocket is expected to be on day after tomorrow at 23rd April.

View attachment 736009​

FINALLY!!

The BIG DAY is coming.. This is very significant. More important than CNSA Mars mission!

 

[JSCh]

 

[JSCh]

https://twitter.com/x/status/1369304468051783680

People's Daily, China @PDChina
China state-affiliated media

#China and #Russia on Tuesday signed a memorandum of understanding (MoU) on jointly building an international scientific research station on the #moon, said China National Space Administration (CNSA).


11:10 PM · Mar 9, 2021

China, Russia emphasize international cooperation in establishing Lunar station with joint declaration
By Deng Xiaoci in Nanjing
Published: Apr 24, 2021 08:36 AM

China National Space Administration (CNSA) and its Russian counterpart Roscosmos issued on Friday a joint declaration on cooperation in the creation of the International Scientific Lunar Station (ISLS), with the two sides emphasizing that the ISLS is open to all international partners interested in cooperation.

China, Russia emphasize international cooperation in establishing Lunar station with joint declaration - Global Times

www.globaltimes.cn

 

[JSCh]

China to achieve "major breakthrough" in nuclear-powered space shuttle around 2040: report
Source: Xinhua| 2017-11-16 20:39:01|Editor: Xiang Bo



BEIJING, Nov. 16 (Xinhua) -- China is expected to achieve a "major breakthrough" in nuclear-powered space shuttles around 2040, according to a report issued by China Aerospace Science and Technology Corporation on Thursday.

The achievement will be able to support large-scale exploration and development of space resources, and make mining on asteroids and space solar power plants possible, said the report, which outlines the development road map for China's space transportation system to 2045.

A future generation of carrier rockets will be put into use around 2040 and hybrid power reusable carriers will be developed, the report said.

By 2045, the means of getting into and out of space as well as space transportation will see subversive transformations, making it possible to build a space ladder, earth station and space post, as well as regularly explore the solar system on a large scale with coordination between humans and machines, said the report.

The report also said that the Long March-8 carrier rocket is expected to be launched in 2020 and the Long March series of rockets will provide commercial launch services for other countries.

Around 2025, reusable suborbital carriers will be successfully developed and suborbital space travel will come true, it said.

Around 2030, heavy carrier rockets will be launched to provide powerful support to manned lunar landing missions and sufficient transportation power for samples from Mars to return to Earth.

Around 2035, carrier rockets will be completely reusable and the future generation intelligent carrier rockets with advanced power will be launched, the report said.

https://twitter.com/x/status/1385824703567187969

China Xinhua News @XHNews
China state-affiliated media

What will lunar travel be like? Click to try the "sky ladder" and "manned lunar rover" envisaged by Chinese scientists. The "ladder" will transport humans and goods to the moon for just four percent of the current cost

 

[JSCh]

观察者网 ​

今天 12:50 来自 微博 weibo.com​

【#中国将论证建设近地小行星防御系统#

】4月24日上午，2021中国航天日开幕启动仪式在江苏南京举行。国家航天局局长张克俭在致辞时表示：“站在新的历史起点，中国航天将论证实施探月工程四期、行星探测工程、建设国际月球科研站和近地小行星防御系统，拉开新时代探索九天的新序章。”​

Quancha.cn
Today at 12:50 from Weibo weibo.com

[China will evaluate development of a near-Earth asteroid defense system]

On the morning of April 24, the opening ceremony of 2021 China Space Day was held in Nanjing, Jiangsu. Zhang Kejian, Director of the National Space Administration, said in his speech: "Standing at a new historical starting point, China Aerospace will evaluate and implement the fourth phase of the lunar exploration project, the planetary exploration project, the construction of an international lunar research station and a near-Earth asteroid defense system, and a new era will be opened to explore a new prologue to space."

 

[JSCh]

科技日报 ​

16分钟前 来自 微博 weibo.com​

【2021年宇航领域科学问题和技术难题发布！】星空浩瀚无比，探索永无止境。在4月24日下午的2021年中国航天大会上，中国宇航学会发布2021年宇航领域科学问题和技术难题。科学家的“脑洞”有多大，人类对于宇宙的想像有多宏远，看看这些问题就知道了：太阳磁场周期性反转与太阳全球磁场探测、星系生态环境中的反馈效应及“重子缺失”问题、利用太空原位资源实现人类长期地外生存、空间准绝对零度超低温热管理技术、可重复使用液体火箭发动机设计技术、基于核聚变推进系统的空间飞行器设计技术、大空域跨速域高超飞行器气动布局设计方法与技术、吸气式高速飞行器内外流耦合声振环境评估与预示技术、地球同步轨道星地全天时安全通信技术、空间高压大功率发电与电力管理技术。（科技日报记者 金凤 张晔）​

Science and Technology Daily
16 minutes ago from Weibo

[2021 scientific and technical problems in the aerospace field were released! ]

The starry sky is vast, and the exploration is endless. At the 2021 China Aerospace Conference on the afternoon of April 24, the Chinese Astronautical Society announced the 2021 scientific and technical problems in the field of aerospace. How big a scientist’s "brain hole" is, and how ambitious is human’s imagination of the universe, you will know by looking at these problems: the periodic reversal of the sun’s magnetic field and the exploration of the sun’s global magnetic field, feedback effects in the star system ecosystem And the “missing baryon” problem, using in-situ resources to achieve long-term extraterrestrial survival of mankind, quasi-absolute zero degree ultra-low temperature thermal management technology in space, reusable liquid rocket engine design technology, spacecraft design based on nuclear fusion propulsion system,
Aerodynamic layout design method and technology of hypersonic aircraft for large cross speed and airspace zone, acoustic and vibration environment assessment and prediction technology for internal and external flow coupling of air-breathing high-speed aircraft, geosynchronous orbit satellite-to-earth all-time secure communication technology, space high-voltage and high-power power generation and power management technology.
(Science and Technology Daily reporter Jin Feng Zhang Ye)

 

[JSCh]

https://twitter.com/x/status/1386536654974775297

CnTechPost@CnTechPost

China developing heavy-lift launch vehicle to pave way for lunar base

 

[JSCh]

From 卡尔达瓦里希 via weibo.

Picture of Tianhe core module of Chinese Space Station. Preparing for launch set on 29th April by LM-5B rocket. Roll out of the rocket is expected to be on day after tomorrow at 23rd April.

View attachment 736009​

https://twitter.com/x/status/1387616628385275904

 

[JSCh]

China航天​

5月1日 22:37 已编辑​

“天宫”号空间站核心舱推进系统配备4台轨控发动机、22台姿控发动机这些在航天技术中常用的常规动力以外，还额外配置了4台霍尔电推进发动机，首次将电推进动力应用到空间站上。空间站在围绕地球运转的过程中，会因为地球引力影响轨道高度，需要发动机消耗额外推进剂来抬升轨道。霍尔电推进系统以其推力小、精确调整、工作时间长的特性，“细水长流”地发挥作用，辅助空间站抵抗轨道衰减，维持在原定轨道上正常运转。可有效节省核心舱自带推进剂的消耗，保证推进剂的合理充分利用O“三项创新”造就天和核心舱推进系统​

China Aerospace
May 1st 22:37

The core module propulsion system of the "Tiangong" space station is equipped with 4 orbital maneuver engines and 22 attitude control engines, which are commonly used in aerospace technology. In addition to those conventional engine, it is also equipped with 4 Hall effect thrusters for the first time in a space station. As the space station revolves around the earth, its orbital height will be affected by the gravity of the earth, requiring propulsion engine to consume additional propellant to maintain the orbit. With the characteristics of low thrust, precise adjustment, and long working hours, the Hall effect thrusters plays a role in providing low but persistent thrust, assisting the space station to resist orbit attenuation and maintain normal operation on its original orbit and effectively save propellant consumption of the core module and ensure its reasonable and full use.

 

[JSCh]

Steed的围脖​

今天 09:15 来自 微博 weibo.com​

地面上拍到的中国空间站天和号核心舱！这也太清楚了吧……

图源：Philip Smith​

Steed's weibo
Today at 09:15 from Weibo

The core module of the Chinese Space Station Tianhe photographed on the ground! This is so clear... Source: Philip Smith

 

[Galactic Penguin SST]

The CNSA/CMS official account on Weibo confirms that #LongMarch5 CZ5B booster has reentered at 02:24 UTC, May 9. The location of the reentry is 72.47°E, 2.65°N. https://weibo.com/2196038737/KeDPliFXS?from=page_1001062196038737_profile&wvr=6&mod=weibotime
The CMS website appears to be down, though.

https://twitter.com/Yeqzids/status/1391228551966302210

据中国载人航天工程办公室消息，经监测分析，2021年5月9日10时24分，长征五号B遥二运载火箭末级残骸已再入大气层，落区位于东经72.47°，北纬2.65°周边海域（印度洋马尔代夫群岛附近），绝大部分器件在再入大气层过程中烧蚀销毁。 (CMSA)

https://archive.ph/Svv2Y/08ce17c06b6cd1cf94d6b1767f61a4a1c23350e1.jpg ; http://web.archive.org/web/20210509032103/https://pbs.twimg.com/media/E06hluWWEAYD4K5?format=jpg&name=medium ; http://web.archive.org/web/20210509032058/https://twitter.com/TheElegant055/status/1391227343096647688 ; https://archive.is/CyROd ; https://archive.is/CyROd/765b3802efc578ff0e3bf86525fdaabccd9760ee/scr.png
▲ 1. 2021年5月9日10时24分，长征五号B遥二运载火箭末级残骸已再入大气层，落区位于东经72.47°，北纬2.65°。

https://archive.ph/ane2o/68b5620f580c9768ecf69527fd2ccba2ee5b5d92.jpg ; https://archive.ph/ane2o/4421fc04095c038cafa4e733fe9e5203407b366e/scr.png ; http://web.archive.org/web/20210509032547/https://pbs.twimg.com/media/E06j6iIXoAApoRO?format=jpg&name=medium ; https://twitter.com/planet4589/status/1391229692582240257
▲ 2. China now reporting that the CZ-5B R/B rocket stage reentered at 0224 UTC at 72.47E 2.65N which is right over the Maldives.

 

[JSCh]

https://twitter.com/x/status/1391242612569300993

Space-Track @SpaceTrackOrg

@18SPCS confirms that CZ-5B (#LongMarch5B) (48275 / 2021-035B) reentered atmosphere 9 May at 0214Z and fell into the Indian ocean north of the Maldives at lat 22.2, long 50.0. That's all we have on this re-entry; thanks for the wild ride and 30K more followers. Good night!

12:04 PM · May 9, 2021

 

[Han Patriot]

China is always a threat when we managed to launch a spacestation, I remember the same shit happened for TG2...

 

[Galactic Penguin SST]

China is always a threat when we managed to launch a spacestation, I remember the same shit happened for TG2...

Galactic Penguin has clearly demonstrated the existence of a secret undisclosed mechanism that is responsible for the impossible odds behind the Tiangong-1 reentry.

Galactic Penguin posted months before the reentry that it would reenter over the South Pacific. This was confirmed on 1st April 2018.

This time, the CZ-5B R/B also out of control has nonetheless reentered over an uninhabited/least populated territory, near the Maldives.

To further prove the existence of this tool responsible for the controlled reentry of unresponsive deorbiting space objects, we will have many more opportunities in the coming months:

https://archive.ph/GO7SR/c055a94eaf3ca5237245edb83656422a40e3d1e6.jpg ; https://archive.ph/GO7SR/55304545d6e0615bc8e0eece7410d99f515e8c9c/scr.png ;
http://web.archive.org/web/20210415203443/https://9ifly.spacety.com/data/attachment/image/000/18/65/42_640_480.jpg ; https://9ifly.spacety.com/forum.php?mod=redirect&goto=findpost&ptid=89336&pid=811475
▲ 1. First eleven launchers of the CSS program.

This includes 2 more CZ-5B rockets within 2 years.

If all CZ-5B rockets' 2nd stage were to reenter over the same area in the Indian Ocean or Pacific Ocean, one would have to admit that:

• There is a deorbiting secret system controlled by an unknown organization

• This organization is probably not from China

The official prediction by China Manned Space (CMS): 34.43°N, 28.38°E is located between Cyprus and Heraklion.

长征五号B遥二运载火箭末级残骸再入大气层情况公告
发布日期: 2021-05-09 2021年5月9日7时24分，长征五号B遥二运载火箭末级残骸轨道为：近地点高度约130km，远地点高度约160km，倾角41.5°。预计再入时间为5月9日10时12分±15分钟，再入区域中心点位于东经28.38°，北纬34.43°。 At 7:24 on May 9, 2021, the final stage wreckage of the Long March 5B Yao-2 carrier rocket orbits: the height of the perigee is about 130km, the height of the apogee is about 160km, and the inclination angle is 41.5°. The estimated time of re-entry is at 10:12 ± 15 minutes on May 9, and the center of the re-entry area is located at 28.38° east longitude and 34.43° north latitude.
http://web.archive.org/web/20210509032833/http://www.cmse.gov.cn/gfgg/202105/t20210509_47885.html https://archive.ph/9KRdp https://archive.ph/9KRdp/5888ab643640d3c4de96950fa4e45780a9a0c5bf/scr.png

But this was only a copy from the wrong prevision by Space-Track.org, between Cyprus and Heraklion:

New update by @SpaceTrackOrg:
2:13 AM · May 9, 2021 New update by @SpaceTrackOrg: Reentry: 9 may 02:11 UTC ± 1 hour Reentry is imminent. Very similar to last prediction, but with center of reentry window further west. 90% of this track is over ocean. https://archive.ph/gIZKO/8ffa0623dfbc718566f3d84e404a7ab176afb25a.jpg ; https://archive.ph/gIZKO/22d08c9288c339fc5c917fcb6ce893d4a419bd03/scr.png ; http://web.archive.org/web/20210509212403/https://pbs.twimg.com/media/E0563uWWEAY5oxk?format=jpg&name=large ; https://archive.ph/T3o6O ; https://archive.ph/T3o6O/c49691b8e2cccfac699004be0a3f876b43eeec69/scr.png ▲ 2. New update by @SpaceTrackOrg: 2:13 AM · May 9, 2021
http://web.archive.org/web/20210509212752/https://twitter.com/meithan42/status/1391184440437743620 https://archive.ph/T3o6O

• This organization is probably neither from the U.S.

Indeed, time predicted by U.S. DoD 02h04mn UTC also inaccurate:

Update: obj. 48275 #TIANHE-1 CZ-5B R/B decay prediction: May 09, 2021 UTC 02h37mn ± 2h.
11:45 PM · May 8, 2021 Joseph Remis@jremis If time of actual decay is the one predicted by DoD (UTC 02h04mn) Sighting from Portugal and Spain https://archive.ph/V3qIU/0bc05b87c887229fa22b42db608fa617b7cbeafe.jpg ; https://archive.ph/V3qIU/5db31fb413fac5ad87352c309aef6aefe3fa8183/scr.png ; http://web.archive.org/web/20210509215339/https://pbs.twimg.com/media/E05RtfoXoAYwivp?format=jpg&name=4096x4096 ; http://web.archive.org/web/20210509215448/https://twitter.com/jremis/status/1391147298277691394 ; https://archive.ph/Lszlf ; https://archive.ph/Lszlf/b96158f5217af4b7ee33b699f8371bfca5c9a27e/scr.png ▲ 3. Time of actual decay predicted by DoD (UTC 02h04mn).
http://web.archive.org/web/20210509215448/https://twitter.com/jremis/status/1391147298277691394 https://archive.ph/Lszlf

Compared to the post reentry reported time and location:

https://archive.ph/ARHXA/f6a8ee84d42f193509ce30e574f0fb1495417d97.jpg ; https://archive.ph/ARHXA/ad4e627fb580a8f464602915e45107fc977515ee/scr.png ; http://web.archive.org/web/20210509220154/https://pbs.twimg.com/media/E09EewgWYAMy7qd?format=jpg&name=large ; http://web.archive.org/web/20210509220239/https://twitter.com/planet4589/status/1391457587699322886 ; https://archive.ph/fo1A0 ; https://archive.ph/fo1A0/f61dc50cb0e8d411079ed5462c48b4d1df21f5fd/scr.png
▲ 4. Post reentry reported time and location.

• This organization is therefore probably transnational

• The deorbiting ASAT network is probably located geographically all over the world, possibly at least partly if not all in space

• The deorbiting ASAT network might be using laser or some other directed energy as vector

 

[JSCh]

航天爱好者网​

今天 10:00 来自 微博视频 已编辑​

【天火三号试车成功，建议公司下次换个好点的摄像头】北京天兵科技自主研制的国内首台30吨推力HCP火箭发动机天火三号（TH-3）全系统热试车取得成功。​

​

12月以来，TH-3发动机共进行了6次稳态程序的考核，发动机启动、关机平稳，稳态工作参数正常，发动机各项性能指标均达到了设计要求，全面通过热试车考核。​

​

天火三号30吨级发动机是继天火一号（1000N）全系统热试车、天火二号（10000N）全系统热试车成功研制的基础上，由天兵科技独立自主研发生产的，是目前世界上HCP推进剂体系中推力量级最大的发动机，从设计到生产、再至试验点火成功，历时一年，发动机主要零组件采用3D打印方案，发动机研制过程中借鉴了液体火箭发动机和固体火箭发动机交叉融合的设计经验，进行了大量首创性的精密结构、新材料、新工艺的工程应用，提高产品可靠性的同时，大幅降低了发动机生产成本。​

​

天兵科技称，HCP推进剂是航天领域内公认的先进液体推进剂体系，具有绿色无毒、常温贮存、高性能（公司未公开TH3的比冲水平，但以NOFBX相关论文称，比冲可以高到325s，远在单组元发动机之上，甚至超过传统肼基推进剂）、低成本、系统简洁可靠性高的特点。天火三号发动机的试车成功，标志着该推进剂体系的研究已进入工程化应用阶段。采用HCP推进剂的天火三号发动机具备了传统低温双组元推进剂的高性能，同时具备了单组元发动机的可靠性和使用便捷性。这意味着，装备天火三号发动机的液体运载火箭较同等运力规模的火箭，起飞重量降低50%、零部件数量减少60%，大幅降低了运载火箭的制造和发射成本，同时显著提升了运载火箭的可靠性，是未来低成本、高频次进入太空的优质解决方案。此外，得益于天火发动机先进的设计理念和HCP推进剂体系的特点，天火系列发动机还具备连续深度变推力能力，能够让火箭更容易实现回收复用功能。​

​

现在是点评时间，这个HCP应该是一种预混合的推进剂，国外叫NOFBX。绿色无毒比冲相对高，听起来很美，但国内外不大力推进是有原因的，有一定危险性。此类发动机国内外试车时都炸过台子，这种发动机在关闭时控制不好容易回火，沿着燃烧室往上烧，因为推进剂本身就是混合好的。航天爱好者网超话 #中国航天# L航天爱好者网的微博视频​

Space Enthusiast Network
Today at 10:00 from Weibo video

Beijing Tianbing Technology independently developed the first domestic 30-ton thrust HCP rocket engine Tianhuo III (TH-3) full system hot test successfully.

Since December, the TH-3 engine has undergone a total of 6 steady-state program assessments. The engine starts and shuts down smoothly, and the steady-state working parameters are normal. The engine's performance indicators have reached the design requirements and fully passed the hot test.

The 30-ton engine of Tianhuo-3 is developed and produced by Tianbing Technology independently following the successful development of Tianhuo-1 (1000N) full-system hot test run and Tianhuo-2 (10000N) full-system hot test run. It is currently the largest thrust HCP propellant engine system in the world. From design to production, and then to the successful test ignition, it took one year. The main components of the engine used 3D printing. The design experience of the cross-fusion of liquid rocket motors and solid rocket motors was used for reference in the engine development process. A large number of pioneering engineering applications of precision structures, new materials, and new processes have been carried out to improve product reliability and greatly reduce engine production costs.

Tianbing Technology claims that HCP propellant is a recognized advanced liquid propellant system in the aerospace field. It has green, non-toxic, room temperature storage, and high performance (The company has not disclosed the specific impulse level of TH3, but according to NOFBX related papers, the specific impulse can be as high as 325s, which is far higher than that of other mono-propellant engine and even more than traditional hydrazine-based propellants), low cost, simple system and high reliability. The successful test run of the Tianhuo-3 engine indicates that the research on the propellant system has entered the engineering application stage. The Tianhuo-3 engine with HCP propellant has the high performance of traditional cryogenic bi-propellant, and at the same time has the reliability and convenience of mono-propellant engine. This means that the liquid launch vehicle equipped with the Tianhuo-3 engine has a 50% lower take-off weight and a 60% reduction in the number of parts than a rocket of the same capacity, which greatly reduces the manufacturing and launch costs of the launch vehicle, and at the same time significantly improves the reliability of the launch vehicle. It is a high-quality solution for low-cost, high-frequency entry into space in the future. In addition, thanks to the advanced design concept of the Tianhuo engine and the characteristics of the HCP propellant system, the Tianhuo series of engines also have the ability for continuous throttleability, which can make it easier for the rocket to realize the recovery and reuse function.

Here is the time for comment (Note: from editor of Space Enthusiast Network).
This so-called HCP should be a pre-mixed propellant, called NOFBX abroad. Green and non-toxic, the specific impulse is also relatively high, sounds wonderful. But there are reasons why domestic and foreign efforts are not vigorously pursue. There is a certain risk. This type of engine has a history of explosion during test runs at home and abroad. This kind of engine is not easy to control during turn off, when it could backfire and burn up along the combustion chamber because at that time the propellant is already well mixed.

Video link of the test -> L航天爱好者网的微博视频

View attachment 701352
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天兵科技作为国内发展速度最快，行业技术实力最强的民营火箭公司，其自主研制的天龙运载火箭，是国内民营航天首款高性能中型液体运载火箭，目前已完成电气产品联调、结构产品生产、重复使用箭着陆试验、地面设备生产、30吨火箭发动机热试车、星箭联合试验等工作，将于2021年底完成民营航天首次液体运载火箭入轨发射。​

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Tianbing Technology as the domestic private rocket company with the fastest development speed and the strongest technical strength in the industry, its self-developed Tianlong carrier rocket is the first high-performance medium-sized liquid carrier rocket for private aerospace in China. Currently has completed joint debugging of electrical products, structured product production, rocket reusable landing gear test, ground equipment production, 30-ton rocket engine hot test run, satellite-rocket joint test and other work. Plan by the end of 2021, carry out the first private liquid fuel rocket launch into orbit.​

Source:

再获荣膺｜天兵科技荣获“中国年度最具投资价值企业”奖​