China's Space Program Thread II

[Taiban]

Long March 4C Y56 successfully launched Gaofen-12-04 from Jiuquan at ~17:45UTC on August 20

 

[aahyan]

China launches new satellite for Earth observation​

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The launch marks the 484th flight mission of the Long March series carrier rockets.

 

[taxiya]

I am curious if "陆地探测四号01" is a GEOCSAR or just an ordinary GEOSAR. The C in GEOCSAR stands for circular, meaning that the footprint of the satellite on the surface of earth is near circular, while ordinary GEOSAR's footprint is shape 8. GEOCSAR has higher coverage, resolution, more continious coverage, higher revisit frequency for non continious coverage area, and most importantly 3D imaging.
View attachment 117159

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It is a 8 shaped orbit.

 

[by78]

China launches new satellite for Earth observation​

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The launch marks the 484th flight mission of the Long March series carrier rockets.

Stop hot-linking images. Only post pictures that are either on your server, or a common online server like Flickr, Imgur, etc.

Read the rules here and here.

 

[Taiban]

The answer has come.

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It is a 8 shaped orbit.

Posted by a weibo user. Not sure how correct

 

[taxiya]

View attachment 117491
Posted by a weibo user. Not sure how correct

That is an example of geosynchronous orbit. Not of Ludi Tance 4.

Here is the track taken from

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The red dot is the joint of 8. It will fix to the point above the equator. So the sat is circuling above central America for now. That point will not move unless powered maneuver is done (firing thrusters).

 

[taxiya]

This demo is how a Geosynchronous sat's 8 shaped ground track looks like. Coincidently it is placed almost at where Ludi Tance 4 is.

 

[by78]

A Martian dust storm captured by the Tianwen Orbiter in early February of this year.

 

[by78]

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Another 10m diameter ring component for heavy lift (CZ-9). This is made by WAAM (Wire Arc Additive Manufacturing) by a team lead by 卢秉恒 Lu Bingheng in 2021. It weights one tonne and takes one month to make.

There was another 10m ring made by Southwest Aluminium Group in 2016 which was a more traditional method Rolling. It has been reported here before.

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A new record. The First Heavy Industry Group (中国一重) has successfully fabricated a 12-meter diameter light alloy ring.

 

[KYli]

US doesn't want to ban any space weapons except ASAT which both Russia and China have been pursuing as counter measure against the US space weapons.

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