China's Space Program News Thread

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by78

General
An update. The Yutu-2 lunar rover has traveled 1142.39 meters. All systems are functioning normally.

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by78

General
Chief designer Lan Xiaohui (兰晓辉) and his team spent four years to develop the 7500-newton variable thrust engine for the Tianwen-1 Mars lander. Due to the size and weight limitations imposed by the lander's design, the engine had to be both lighter and more compact. Compared to Chang'e lunar lander's variable thrust engine, which also develops 7500 newtons of thrust, the Mars lander engine is smaller and lighter by two-thirds (see 3rd and 4th image below).

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gelgoog

Lieutenant General
Registered Member
Chief designer Lan Xiaohui (兰晓辉) and his team spent four years to develop the 7500-newton variable thrust engine for the Tianwen-1 Mars lander. Due to the size and weight limitations imposed by the lander's design, the engine had to be both lighter and more compact. Compared to Chang'e lunar lander's variable thrust engine, which also develops 7500 newtons of thrust, the Mars lander engine is smaller and lighter by two-thirds (see 3rd and 4th image below).

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Do you have any info on the other performance parameters of the engines? Like Isp or the fuel it uses? I assume the older engine had better Isp because of the engine bell nozzle geometry.
 

escobar

Brigadier
according to this post it is still alive
According to this post, Shiyan-10 satellite still alive.

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Posted on weibo and later deleted.
It say "congratulation on successfully rescue Shiyan-10 satellite"
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SY-10 could be an early warning test sat in elliptical orbit
SY-10 could be an experimental Early Warning sat in HEO from SAST :
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Confirmed, SY-10 in Molniya orbit. First CN sat in such an orbit. Molniya orbit is used for communications service to Arctic regions and high altitude surveillance missions (missile early warning & SIGINT). SY-10 is probably EW
USN SSBN??
 
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