China's Space Program News Thread


by78

Lieutenant General
ZeroG Lab's Magpie Constellation 2.0 Plan was announced at the 2020 China Aerospace Congress. The Magpie Constellation is a remote sensing network composed of multiple satellites with an optical resolution of 0.7 meters. After the constellation is fully deployed, it will form a high-resolution earth observation network, capable of 12-hour global coverage and revisits every 30 minutes. The constellation is capable of data fusion, combining data from Magpie-2 optical satellites and Magpie-3 radar satellites. ZeroG plans to launch the first 25 satellites in 2020, reach 132 satellites by early 2025, and complete the 378-satellite network at a later stage.

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Dante80

Junior Member
Registered Member
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Thanks for the link. This is an old concept for spaceflight, a lot of similar iterations have been around in the last decades.
Personally, I think it has zero probability of implementation. The TRL is too low, and the funds/manhours needed to bring it up are too substantial. Especially for any quasi-private entity.
 

AndrewS

Major
Registered Member
Thanks for the link. This is an old concept for spaceflight, a lot of similar iterations have been around in the last decades.
Personally, I think it has zero probability of implementation. The TRL is too low, and the funds/manhours needed to bring it up are too substantial. Especially for any quasi-private entity.

There's a Nasa proposal to :

launch "wedge-shaped aircraft with scramjets" to high-altitude at Mach 10, where they will then fire a small payload into orbit using conventional rocket propulsion

But it would also potentially work as a railgun, or in bringing up hypersonic aircraft and missiles to operating speed
 

taxiya

Colonel
Registered Member
High-resolution images (mostly) from CZ-11's prep and sea launch.

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More details about the constellation can be found here "
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"

  1. There are 25 of them in orbits (seems not including these 9 new).
  2. The final constellation (phased II) will have 138 in orbits, revisiting every part of the globe in 10 minutes.
  3. The company has moved from R&D to serial production with a capacity of 30 per year. The nine launched this time are the first batch from the production line.
  4. From other source we were told that phase I will put 60 in orbits, giving 30 minutes revisit of hot spot of the globe.
Here is my thoughts:
  1. If the launch capacity matches the production capacity of 30 per year. We should see phase I being realized in one year (end of 2021) because 25+9=34, there is just 26 left to be launched that is a year's production. That is 3 more launchers of CZ-11, very doable.
  2. Giving another 2 years (60+ more sat) some time in 2024, phase II would be ready.
  3. By 2024, every ship or vehicle on this planet would be running naked. :D You know what I am talking about ;)
  4. Even with phase I in end of 2021, in the interested area, ships and vehicles would be running half naked, because 30 minutes revisit interval minus the overhead duration of x minutes means that there is only about 20 minutes or less to hide before the next sat coming over.
  5. It is as important as Beidou GNSS.
    1. Beidou let us know where we are.
    2. Jilin-1 (together with Beidou) tells us where they are.
 

by78

Lieutenant General
I found a series of images from a seminar. They seem to indicate an effort at a space plane using combined cycle rocket engine. My technical Chinese is very limited, so I was unable to translate these. For our Chinese speaking members, do you spot anything interesting?

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Xi'an Aerospace Propulsion Institute of CASC has apparently
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, intended for a single-stage reusable space plane.

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