China's Space Program Thread II

[by78]

The Chinese space station transiting Jupiter.

 

[gpt]

The final two backup Beidou-3 satellites (no. 59 & 60) have arrived at their MEO slots.

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Liu Yingchun, chief designer of the BDS-3, said the development of the next generation BDS-4 has begun and these two satellites from the last group will conduct technological verification and exploration.

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China aims to establish a more ubiquitous, integrated and intelligent comprehensive PNT by 2035, providing a stronger, safer and more reliable system that covers everything from indoors to outdoors, and from deep sea to deep space.

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conducted at urban locations across the Pacific region, we found that disabling BeiDou reduced positioning accuracy by 30% to 40% — a staggering loss of precision with significant real-world implications for navigation, logistics and emergency services.

These tests compared GPS+Galileo performance against GPS+Galileo+BeiDou in environments with limited sky visibility, where multipath interference and signal blockage are common.

While results may vary in other geographies or under open-sky conditions (and would likely improve with the inclusion of additional constellations such as GLONASS), the findings underscore BeiDou’s critical role in

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in real-world, urban navigation scenarios."

 

[by78]

Correction: Tianbing will use the HOS-1 launch platform to conduct full system hot test runs of both the 1st and 2nd stage of the Tianlong-3 launch vehicle. The 2nd stage test will be carried out first, with the stage having been loaded onto the platform today.

The 2nd stage of Tianlong-3 launch vehicle mounted atop the HOS-1 launch platform.

 

[by78]

The base of the 110-meter-diameter Qitai radio telescope has been capped. Located in Qitai County, Xinjiang, the telescope is expected to become the world's largest fully steerable single-dish radio telescope.