China's Space Program News Thread

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voyager1

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A satellite imaging database containing detailed information of more than a million locations has been launched in China to help reduce artificial intelligence’s errors when identifying objects from space, the Chinese Academy of Sciences said on Wednesday.
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The new Chinese database could teach the AI a plane’s exact model, such as Boeing 777, or challenge it to distinguish a warship from a passenger ship.
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Wow! This is the ultimate holy Grail for satellite imaging. The military implications of having AI automatically scan the air, airbases, military installations etc are staggering.

Imagine that they are putting this out in the public, what do they have classified?..

Satellite business is going to boom with these potential capabilities
 
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taxiya

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voyager1 said:
But thats why we are talking about comparing their pressurized volume

As per @Temstar previous post, the ISS has 9x times more volume than the CSS. Note hoever that with all modules assembled the volume of CSS will probably double
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The secret is in the details of the video.

9x is the absolute volume including the dedicated airlock and transfer modules. The useful volume (experiment and habitat) comparison is about 23(US, EU, Japan)+8 (Russia) to 23 (CSS), or 1.34x. The comparison is based on the number of experiment cabinet. I heard they are the same size between CSS and ISS.

Example, CSS has just one airlock for docking of spacecraft and also EVA. ISS has a dedicated airlock for docking and a dedicated module for EVA. There are also 3 docking adapters (US vs. Russian standards).

In simple term, ISS is a huge house with lots of corridors but only 4 bedrooms, CSS is a 3 bedroom house on a 1/9 footprint.
 
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4Runner

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Temstar said:
So what happened here is CSS is in a 42 degree orbit. The lower the inclination the more bonus you gain in delta-V during launch from Earth's spin. The closer your launch site is to the equator the lower your minimum inclination. You can always launch from low latitude launch sites into high inclination orbit easily (eg: the most extreme case you can launch from any launch site into a polar orbit no problem). To launch from high latitude launch site into low inclination orbit requires the launch vehicle to do a "dog leg" maneouver during launch which wastes delta-V and/or reduces maximum payload for a given rocket.

Wenchang (LM-5B and LM-7) - 20 degrees
Jiuquan (LM-2F) - 41 degrees
Baikonur - 46 degrees
Cape Canaveral - 28 degrees

So you can see Wenchang due to its advantageous location could have placed the station in a much lower inclination orbit, but in order to accommodate Shenzhou launched by LM-2F from Jiuquan they ended up putting the station in 42 degree orbit.

42 degrees isn't really that far off the 46 degrees from Baikonur, so if Russians wanted to they could do a four degree dog leg during ascent and be in the correct orbit. Depending on your launch vehicle stack though you may or may not have enough delta-V to perform this. Alternatively you might just launch into a 46 degree inclined orbit, then either use the spacecraft's engines or via some kind of orbital tug and perform an inclination change into 42 degrees. It's not an insurmountable problem mealy an annoyance.

ISS is on a 51.6 degree inclined orbit precisely to accommodate Soyuz and Proton from Baikonur, it does mean launches from Cape Canaveral to the ISS isn't as efficient as it could have been.
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Thanks for the education. Now I become dangerous in space (as typical American marketing people love to say).
 
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voyager1

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Man they never learn...lets hope that the rocket this time doesn't fall on anyone's property or on their heads!
JFC, amateur hour. I really want to believe that this is just western propaganda but with the past record it might be true.

China should stop dropping stuff on people's head

Major embarrassment and think of the diplomatic consequences if it drops to another country and kill a person there.....
 
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Orthan

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It seems that the ISS has velcro in its walls for placing the equipment. Does the CSS has the same? otherwise the equipment will have to be tied to the wall.
 
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SilentObserver

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voyager1 said:
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Wow! This is the ultimate holy Grail for satellite imaging. The military implications of having AI automatically scan the air, airbases, military installations etc are staggering.

Imagine that they are putting this out in the public, what do they have classified?..

Satellite business is going to boom with these potential capabilities
Click to expand...
China's civilian remote sensing satellites provides for some interesting videos.

1. Atlanta International Airport. Stationary and moving aircrafts are identified and labelled with speed indication.
2. @0:45 Tehran, Iran. Each moving vehicle is identified and traffic information is generated from this data.

1. Shanghai Hongqiao International Airport
2. @0:05 Tokyo, Japan
3. @0:08 Port of Valencia, Spain. AI would be able to count container inventory and produce logistics information.
4. @0:16 Minneapolis−Saint Paul International Airport.
5. @0:24 Dubai International Airport, UAE
6. @0:29 Brisbane, Australia
7. @0:37 Tianjin, China. We can see the movement of the satellite through the change in the view angle of skyscrapers.
8. @0:44 Rourkela, India.

Taoyuan International Airport, Taiwan

US aircraft carrier at San Diego Naval Base. Area protected by nets is highlighted in red.

Unrelated but in a recent PAP urban warfare training video I saw the use of drones to scan a high rise cluster to produce a 3D model that can be viewed by the troops. With the fusion of data from remote sensing satellites and other sensors a live 3D battlefield map can be produced and accessed by frontline troops and central command. Eventually AI would be able to make battlefield suggestions for manoeuvring and placing assets.
 
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