China's Space Program Thread II

[sunnymaxi]

Tsinghua University's "Wangshu Chariot," selected as one of the prototype designs for CNSA’s lunar rover project, features elevated seats, solar canopy, and foldable design. It includes hybrid driving tech & a unique joystick, adaptable for Earth vehicles..

The design team also developed the man-machine intelligent hybrid enhanced driving technology for the manned lunar rover, realizing three modes of manual driving, autonomous driving and human-machine hybrid driving, which not only provides astronauts with driving pleasure, but also provides safe driving and special needs. Provides guarantee for autonomous return to the lunar lander under certain circumstances.

This technology can also be transplanted to the driving of ground vehicles to better integrate human control and autonomous driving. In addition, in order to solve the problem of limited wrist and finger movement caused by astronauts wearing lunar spacesuits, and to improve the reliability of driving, specially designed operations can decouple the forward, backward, steering and braking movements in terms of hand feel. joystick, and gives the joystick mouse function. To ensure reliability, the joystick was moved to the middle position between the two astronauts so that the astronauts could hand over control functions at any time. Similarly, this technology can also be transplanted to ground vehicles to realize co-driving of the driver and auxiliary driver..

Link -

Please, Log in or Register to view URLs content!

 

[taxiya]

What they don't do sea landing ? Would be more smooth than hard landing on ground I guess.

It is not softer to land in the sea than on land. If you dive into the water head or feet first vertically it is "softer" because the impact area is small and water has time to be displaced. But if you smash the water with your face, belly and legs at the same time it is hard, only slightly softer than landing on a concrete floor, the higher landing speed the harder, over a certain speed water is as hard as concrete. Try to do a flat smashing in the swimming pool from just one meter high and you would know.

Spacecraft even with parachut still has very high landing speed in the range of 3m/s to 5m/s, Shenzhou and Suyuz use retro rockets, the touch-down speed is further reduced. Sea landing does not use retro rocket, the touch-down speed is much higher eliminating any "softness" of water.

The reason of sea landing adopted by US is because they have a large Naval presence and two oceans on each sides. Russia does have sea near its coast at the right latitude. China only has sea at eastern side but surrounded by islands and busy marine traffic.

Somewhat tougher landing this time around. Higher winds I think, gave a little more horizontal vel than usual.

https://twitter.com/i/web/status/1719278335296000020

Everyone is fine, of course.

I don't see it being more tougher than any previous landings. Yes it rolls, but that is normal. Remember the capsule is hang by the parachute at an angle, it is always the edge hitting the ground first. With a tiny horizontal speed, it will roll over. Not rolling should be very rare.

Compare to Shenzhou-13's landing. The wind was much stronger than Shenzhou-16 meaning higher horizontal speed at touch-down, and yet the spacecraft did not roll and stood upright. It is just a luck.

 

[taxiya]

Tsinghua University's "Wangshu Chariot," selected as one of the prototype designs for CNSA’s lunar rover project, features elevated seats, solar canopy, and foldable design. It includes hybrid driving tech & a unique joystick, adaptable for Earth vehicles..

The design team also developed the man-machine intelligent hybrid enhanced driving technology for the manned lunar rover, realizing three modes of manual driving, autonomous driving and human-machine hybrid driving, which not only provides astronauts with driving pleasure, but also provides safe driving and special needs. Provides guarantee for autonomous return to the lunar lander under certain circumstances.

This technology can also be transplanted to the driving of ground vehicles to better integrate human control and autonomous driving. In addition, in order to solve the problem of limited wrist and finger movement caused by astronauts wearing lunar spacesuits, and to improve the reliability of driving, specially designed operations can decouple the forward, backward, steering and braking movements in terms of hand feel. joystick, and gives the joystick mouse function. To ensure reliability, the joystick was moved to the middle position between the two astronauts so that the astronauts could hand over control functions at any time. Similarly, this technology can also be transplanted to ground vehicles to realize co-driving of the driver and auxiliary driver..

Link -

Please, Log in or Register to view URLs content!

Tsinghua's disgn is not selected for prototyping according to CMSE.

Please, Log in or Register to view URLs content!

Only two designs entered prototyping phase (detailed engineering design). They are from 8th and 5th academy of CASC, see bold texts below. Tsinghua and another 5 teams will receive funding for certain design aspects that are interesting, see underlined texts.

10月中旬，中国载人航天工程办公室组织专家对11份方案从方案先进性、工程可行性、研制基础等方面进行了认真审查评估，中国航天科技集团八院牵头联合中国一汽、北方车辆研究所、北京理工大学、惠州亿纬锂能团队，中国航天科技集团五院牵头联合广汽集团、香港理工大学团队，提交的方案具有明显优势，获得工程支持，进入方案详细设计阶段。清华大学团队（联合航天三江集团），北京航空航天大学团队（联合中央美术学院、成都国星宇航、北京履坦科技），重庆大学团队（联合阿维塔科技（重庆）、四川美术学院、重庆宇杰汽车），追觅创新科技（苏州）有限公司，上海龙创汽车设计股份有限公司，上海交通大学团队（联合北京工业大学、徐工集团、上汽集团、中国电子科技集团），提交的方案各具特色，在部分单项技术上具有优势，工程将采用后补助方式支持以上6个团队跟随开展方案深化研究，主要聚焦载人月球车创新设计及单项优势技术开展深化。

 

[Quickie]

Somewhat tougher landing this time around. Higher winds I think, gave a little more horizontal vel than usual.

https://twitter.com/i/web/status/1719278335296000020

Everyone is fine, of course.

The capsule was still vertical right after the rocket motor fired from video time 9 to 10. The capsule then hit something on the ground which got it to start rolling. The fact that there was no sudden change in horizontal speed helps to soften the landing.

 

[by78]

China has

Please, Log in or Register to view URLs content!

for space debris and objects.

China has issued 3 new national standards in the field of space debris​

Source: Space Debris Center

Recently, the State Administration for Market Supervision and Administration (National Standardization Administration) issued the National Standard Announcement of the People's Republic of China No. 9 of 2023, including the Space Debris Fragment Technical Committee of the National Aerospace Technology and Its Application Standardization Technical Committee (SAC/TC42 5/SC5) Three national standards in the field of space debris, such as the Requirements for the Registration of Space Objects, the Code for the Orbital Data of Space Objects, and the Detailed Requirements for the Disposal of the Orbital Level of Launch Vehicle, are compiled by the organization. The full text of the first two standards can be viewed on the website of the National Standard Information Public Service Platform.

Standard Information of "Registration Requirements for the Registration of Space Objects"
The standard was drafted by the National Astronomical Observatory of the Chinese Academy of Sciences, the China Institute of Space Standardization, and the Earth Observation and Data Center of the National Space Administration.The preparation of the standard aims to refine and implement the "Administrative Measures for the Registration of Space Objects" issued by the former Commission of Science, Technology and Industry for National Defense and the Ministry of Foreign Affairs in 2001, clarify the relevant responsible entities, registration contents and specific processes, and guide participants in China's space activities to perform the registration of space objects. At the same time, it will also help China better fulfill the responsibilities of the parties to the United Nations Convention on the Registration of Objects ejected into Outer Space.

The standard specifies the registration type, relevant parties and responsibilities, registration content and registration process of space objects. It applies to the registration of space objects launched in China, launched abroad as a co-launching country, and whose owners belong to China.

Standard Information of the "Orbital Data Specification for Space Objects"

The standard was drafted by the National Astronomical Observatory of the Chinese Academy of Sciences, Nanjing University and the China Institute of Aerospace Standardization. This standard is mainly applicable to the release, exchange and application of orbital data of spacecraft, carrier rockets, space debris, and other artificial space objects orbiting around a celestial body; the release, exchange and application of near-Earth asteroid orbit data in the solar system.

The orbit data of space objects is an important foundation for international cooperation in the space field. Moderate openness and transparency of information about space objects are necessary conditions for participating in space security governance. Therefore, the formulation of China's publicly released standards for the orbit data of space objects makes China's cataloging data of space objects form a unified standard, which is conducive to China's participation in international space-related affairs and contributes to the implementation of the concept of a community with a shared future for mankind and the maintenance of the sustainable use of outer space.

Standard situation of "Detailed Requirements for the Disposal of Launch Vehicle Orbital Level"The standard was drafted by the Shanghai Institute of Aerospace Systems Engineering. On the basis of fully summarizing and refining the relevant experience in orbital stage derailment and reentry of launch vehicles at home and abroad, this standard stipulates the disposal activities in the two aspects of launch vehicle orbital stage derailment and reentry in the form of ISO 2089-2021 "Detailed Requirements for Space Debris Mitigation of Launch Vehicle Orbital stage". Relevant principles, requirements and suggestions for planning and implementation.Combined with China's existing top-level standard GB/T 34513-2017 "Space Debris Mitigation Requirements" and two detailed standards for space debris mitigation of launch vehicles: GB/T 32295-2015 "Design Requirements for Residual Propellant Emissions of Carriers", GB/ T38194-2019 "Design Requirements for Operational Debris Mitigation of Launch Vehicle", this standard further supplements and improves the relevant detailed standards in the field of space debris mitigation of China's launch vehicles, which is conducive to the health and sustainable development of China's space industry and reflects China's responsibility as a responsible space power.The Detailed Requirements for the Disposal of Launch Vehicle Orbital stages involves international standards, and the full text of its standards is not read online. If you need to consult it, please contact China Standard Publishing House.

 

[by78]

Beijing i-Space (also known as Interstellar Glory, Space Honor, Beijing Interstellar Glory Space Technology, StarCraft Glory, Interplanetary Glory, Interplanetary Glory Space Technology, so on and on and on) has moved its SQX-2Y VTVL technology verification rocket to a launchpad at the Jiuquan Satellite Launch Center. A test flight appears imminent. SQX-2Y has a diameter of 3.35m and is powered by the Focus-1 (JD-1) LOX/Methane engine.

High-resolution images of the successful VTVL test of iSpace's SQX-2Y technology verification rocket.

SQX-2Y has a diameter of 3.35m and a length of 17m. The test flight lasted 50.82 seconds and reached an altitude of 178.42m. The positional accuracy of the landing was 1.68m, the landing speed was 0.025m/s, the landing attitude angle was 0.18°, and the roll angle was 4°.

 

[by78]

After opening the manned lunar rover project to public participation back in May, a total of 40 enterprises and academic institutions submitted numerous proposals jointly or separately, of which 11 were selected for further expert review and assessment.

Please, Log in or Register to view URLs content!

, which are as follows:

– The proposal from the Eighth Academy of CASC (in partnership with the FAW Group, the Northern Vehicle Research Institute, Beijing University of Technology, and Huizhou Yiwei Lithium Energy) has been chosen for detailed design and engineering development.​

– The proposal from the Fifth Academy of CASC (in partnership with GAC Group and the Hong Kong Polytechnic University) has also been chosen for detailed design and engineering development.​

– Six proposals submitted by Tsinghua University (partnering with Sanjiang Group), Chasing Innovation Technology Co, Beijing University of Aeronautics and Astronautics (partnering with the Central Academy of Fine Arts, Chengdu Guoxing Aerospace, Beijing Lutan Technology), Chongqing University (partnering with Avita Technology, Sichuan Academy of Fine Arts, Chongqing Yujie Automobile), Shanghai Longchuang Automobile Design Co, and Shanghai Jiaotong University (in conjunction with Beijing University of Technology, Xugong Group, SAIC Group, China Electronic Technology Group) have shown unique merits and promise in individual technologies and subsystems. These six proposals will receive funding for further development.​

A video on Tsinghua University's proposal for manned lunar rover.

 

[Kalec]

The fifth GEO EW satellite will be launched tomorrow, could it be the last one?

Finally someone else posted it, TJS-10 ready to go from Wenchang.

The question remains that whether it is indeed an EW satellite or SIGINT satellite.

https://twitter.com/i/web/status/1720202799764709523

 

[taxiya]

Can someone tell me why sattelite with the name "Shiyian" (experiment) such as TJS (Tongxin Jishu Shiyan) is considerred to be military usage? I mean a woldview sattelite is considerred civilian but it certainly can provide photos for military usage. So why when a telecommunication technology experiment sattelite by Chinese official statement must be a EW or SIGINT satellite instead of possibily being really a communication sattilite?

Of course, they could still be used for military purpose just like many other civilian sattelites. But the chances are some but not all of them are military, and counting number of "experiment" satellites becomes very unreliable for the purpose of millitary information gathering.

 

[by78]

Finally someone else posted it, TJS-10 ready to go from Wenchang.

The question remains that whether it is indeed an EW satellite or SIGINT satellite.

https://twitter.com/i/web/status/1720202799764709523

The launch was a success and marked the 495th flight of the Long March series.