China's Space Program News Thread

[escobar]

 

[Strangelove]

 

[iantsai]

在神舟十四号载人飞船与空间站组合体成功实现自主快速交会对接后，航天员乘组从返回舱进入轨道舱。按程序完成各项准备后，航天员陈冬成功开启天和核心舱舱门，北京时间2022年6月5日20时50分，航天员陈冬、刘洋、蔡旭哲依次全部进入天和核心舱。后续，航天员乘组将按计划开展相关工作。

Shenzou-14 crew entered the Space Station at 20:50 UTC+8, June 5.

End of a trip and beginning of a career.

 

[Helius]

Shenzou-14 crew entered the Space Station at 20:50 UTC+8, June 5.

End of a trip and beginning of a career.

 

[gadgetcool5]

I believe today marks the beginning of China's planned permanent habitation of LEO for the foreseeable future and permanent habitation of the Tianhe core module. Congratulations China.

 

[FairAndUnbiased]

The “Geely Future Mobility Constellation”, which provides centimeter accuracy for vehicle navigation including autonomous driving, will eventually consists of 240 satellites. Of these, 72 will be launched before 2025. So I guess China will probably have 2 independent GPS systems when it's done.

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Corporate owned satellite navigation???

 

[anzha]

A write up on China's work towards asteroid defense:

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[Strangelove]

 

[taxiya]

The “Geely Future Mobility Constellation”, which provides centimeter accuracy for vehicle navigation including autonomous driving, will eventually consists of 240 satellites. Of these, 72 will be launched before 2025. So I guess China will probably have 2 independent GPS systems when it's done.

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Corporate owned satellite navigation???

No. GeeSat is an augmentation system, not an independent navigation on its own. It is similar to cellular network augmenting GPS, Beidou systems, similar in principle of A-GPS.

Here is a paper about augmentation system

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The paper talked about LEO-NA (低轨卫星导航增强) which is what Geely Space is doing. These LEO satellites are broadcasting the same but enhanced Beidou signal. Signal is enhanced both in accuracy (time and location) and strength (S/N ratio). It can be seen as adding more Beidou satellites in LEO instead of MEO in the baseline.

 

[by78]

More images from the Chinese space station.