China's Space Program Thread II

[by78]

The clearest image of Liaowang-1 yet.

 

[by78]

Another interesting article on Starlink translated from Chinese, this one Pre-dating the Ukraine Russian War of 2022 to …..

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Why is it interesting?

 

[by78]

The chief of Changguan Satellite Technology revealed in an

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that a new generation of optical and radar satellites are under active development. The company plans to rapidly expand its Jilin-1 constellation to 300 satellites by the end of 2026.

The first X-band synthetic-aperture radar satellite of the Jilin-1 constellation is on its way to the launch site. This and future SAR satellites will be a significant upgrade to the constellation's capabilities.

 

[Andy1974]

The first X-band synthetic-aperture radar satellite of the Jilin-1 constellation is on its way to the launch site. This and future SAR satellites will be a significant upgrade to the constellation's capabilities.

Isn’t X-band used for final target homing in missiles? I wonder if this satellite can be used to guide missiles to their target. Maybe this would allow stealth missiles to approach targets undetected.

 

[tphuang]

Isn’t X-band used for final target homing in missiles? I wonder if this satellite can be used to guide missiles to their target. Maybe this would allow stealth missiles to approach targets undetected.

You can definitely use constellations for this purpose but I don’t think the precision on this jilin constellation would allow for it.

 

[Andy1974]

You can definitely use constellations for this purpose but I don’t think the precision on this jilin constellation would allow for it.

Yes a big constellation, and Thursdays post from @escobar on the previous page shows a satellite constellation being built at around 166km altitude.

Let’s say an B-21 is flying at 16km altitude, or 52,500 feet, well this X-band radar could be only 100km away, assuming it was directly above.

Just need to keep launching batches.

 

[taxiya]

Yes a big constellation, and Thursdays post from @escobar on the previous page shows a satellite constellation being built at around 166km altitude.

Let’s say an B-21 is flying at 16km altitude, or 52,500 feet, well this X-band radar could be only 100km away, assuming it was directly above.

Just need to keep launching batches.

This SAR01A has nothing to do with missile guidance. Not every sat is related to military. Yes these sats can be used for military purpose, so can a pickup truck or kitchen knife.

SAR01A is for remote sensing like drawing a map and measure the location. This need high resolution therefor X band. A longer wavelength simply can not do the job.

However, this is a symthetic radar, meaning it need multiple scans to create a single image. An image may be produced in hours. It would be useless to track missile or even a moving ship.

 

[by78]

Some images of LandSpace assembly plant where Zhuque-2s are assembled.

 

[by78]

A Long March 4B successfully launched the Yaogan-43 02 into space earlier today. using the Long March 4B carrier rocket at the Xichang Satellite Launch Center. The satellite will be used to carry out technology verification for the low-orbit constellation systems. This launch marks the 533rd flight of the Long March series.

 

[by78]

Illustrations of the Chang'e-7 lunar orbiter and lander. The mission is set for 2026 and will explore the lunar south pole.

Chang'e-7 project has entered prototyping stage.