Author Topic: China's space program  (Read 659994 times)

Offline plutogno

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Re: China's space program
« Reply #340 on: 04/06/2013 08:18 am »
new paper: Trajectory Design of Crewed Exploration to Asteroid
http://zgkj.cast.cn/EN/abstract/abstract10640.shtml

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Abstract Trajectory design is an important part of research on crewed asteroid exploration.Firstly, combined with the basic condition and postulate of trajectory design,the trajectory model was built based on the Lambert theory.The validity of the model was verified through computer simulation. The trajectory model was used for the crewed exploration to asteroid 89136, and the trajectory design results were given.Secondly,different failure modes were considered,the abort trajectory and the characteristics were analyzed, and the ability of the explorer to return to the earth in an emergency was discussed.Finally, the related conclusions were drawn.

Offline Steven Pietrobon

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Re: China's space program
« Reply #341 on: 04/07/2013 05:26 am »
Thanks plutogno. Unfortunately, I'm not able to download the paper. Can anyone post it here?
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline plutogno

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Re: China's space program
« Reply #342 on: 04/07/2013 07:29 am »
here you go. but it's in Chinese...

Offline Steven Pietrobon

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Re: China's space program
« Reply #343 on: 04/08/2013 08:14 am »
Thanks plutogno. Seems like the authors are comparing their results with NASA. Maybe this is the beginning of an Asteroid space race! :-)
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline GBpatsfan

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Offline plutogno

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Re: China's space program
« Reply #345 on: 07/20/2013 09:26 am »
I finally had time to scan a few Chinese brochures from last month's Paris Le Bourget air show

Offline Satori

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Re: China's space program
« Reply #346 on: 07/20/2013 09:33 am »
I finally had time to scan a few Chinese brochures from last month's Paris Le Bourget air show


Great! Thank you very much!

Offline plutogno

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Re: China's space program
« Reply #347 on: 11/05/2013 06:03 pm »
for those of you who can read Chinese, here is a paper on Shenzhou rendezvous techniques
http://tech.scichina.com:8082/sciE/CN/abstract/abstract512628.shtml

Offline savuporo

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Re: China's space program
« Reply #348 on: 11/11/2013 04:22 pm »
Not sure if this was already discussed in the thread here
http://www.larouchepub.com/other/2013/4042asia_lead_space.html

These bits were news to me :
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Indeed, the head of the China National Space Administration (CNSA), Ma Xingrui, made very clear that China has invited other nations to join its space station program and "help other developing countries to put their astronauts in space."

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Recently, China's first astronaut, Yang Liwei, extended an invitation to foreign space agencies to train crew members for flights on Shenzhou craft. Astronaut Liu Yang reiterated this offer at the Congress. The German space agency is already working with China, having flown experiments on the last Shenzhou mission, and France has also been in discussions with China on cooperation. The European Space Agency, according to Dr. Li, is considering cooperation in microgravity research, human physiology and space medicine, and astronaut selection.
Orion - the first and only manned not-too-deep-space craft

Offline plutogno

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Re: China's space program
« Reply #349 on: 11/23/2013 12:06 pm »
on the next issue of Aviation Week: China’s Space Program Is Taking Off
http://www.aviationweek.com/Article.aspx?id=%2Farticle-xml%2FAW_11_25_2013_p50-637107.xml
anybody has a reference for the IAC paper on the Beihang University small Mars orbiter? I have not found it on the IAC website

Offline savuporo

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Re: China's space program
« Reply #350 on: 12/20/2013 12:45 am »
Orion - the first and only manned not-too-deep-space craft

Offline Rocket Science

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Re: China's space program
« Reply #351 on: 12/20/2013 12:50 am »
I had not seen this pics before

http://bbs.miercn.com/201309/thread_224318_1_2.html
These are photoshopped U.S. concepts...
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~Rob: Physics instructor, Aviator

Offline HappyMartian

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Re: China's space program
« Reply #352 on: 12/29/2013 02:35 pm »
"'The obvious place to go, in my opinion, where the big unknowns are, are the poles,' Spudis says. 'The whole thing about polar ice is very interesting. It's an enabling asset [for future human exploration]; it's a big scientific unknown. They could configure a rover with a slightly different instrument configuration to really get some first-order information about the polar deposits.'

From: China Looks To 2017 Sample-Return Moon Mission  By Bradley Perrett, Frank Morring, Jr.
At: http://www.aviationweek.com/Article.aspx?id=/article-xml/AW_12_23_2013_p45-648942.xml&p=2
"The Moon is the most accessible destination for realizing commercial, exploration and scientific objectives beyond low Earth orbit." - LEAG

Offline plutogno

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Re: China's space program
« Reply #353 on: 01/08/2014 03:58 pm »
progress of the FAST 500 m radiotelescope, which may also have some use in deep space communication

Offline Blackstar

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Re: China's space program
« Reply #354 on: 01/08/2014 05:38 pm »
progress of the FAST 500 m radiotelescope, which may also have some use in deep space communication

I thought that their original goal was to have a bunch of movable dishes. Have they abandoned that approach?

Offline plutogno

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Re: China's space program
« Reply #355 on: 01/08/2014 05:45 pm »
since at least the early 2000s FAST is a single, Arecibo-like antenna

Offline Blackstar

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Re: China's space program
« Reply #356 on: 01/08/2014 05:50 pm »
since at least the early 2000s FAST is a single, Arecibo-like antenna

But does it have steerable panels?

In 2009 I was at Arecibo (I was working on a project on NEOs and we visited Arecibo because it is used for radar imaging of NEOs). While there we talked to some of the workers who mentioned China's plan. Apparently the Chinese approach does not use a central hanging tower that is moved around to the focal point. They thought that the Chinese approach was much more complicated and likely to break down. I am wondering if the Chinese changed their design to have less moving parts.

Offline Star One

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Re: China's space program
« Reply #357 on: 01/16/2014 07:26 am »
From Universe Today.

China considers Manned Moon Landing following breakthrough Chang’e-3 mission success.

http://www.universetoday.com/107716/china-considers-manned-moon-landing-following-breakthrough-change-3-mission-success/

Offline Steven Pietrobon

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Re: China's space program
« Reply #358 on: 01/17/2014 03:20 am »
An important quote from the article.

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“The manned lunar landing has not yet secured approval from the national level authorities, but the research and development work is going on,” said Zhang.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline plutogno

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Re: China's space program
« Reply #359 on: 01/22/2014 05:41 am »
a paper by Chinese researchers on one of the objects they have indicated as a possible target for their asteroid mission:
Shape, Thermal and Surface Properties determination of a Candidate Spacecraft Target Asteroid (175706) 1996 FG3
http://arxiv.org/abs/1401.5357

 

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