China's first dedicated asteroid mission |
China's first dedicated asteroid mission |
Dec 28 2012, 03:52 AM
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#1
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Junior Member Group: Members Posts: 86 Joined: 12-October 05 From: Beijing Member No.: 526 |
http://wb.lzbs.com.cn/html/2012-12/27/content_420157.htm
China's first dedicated asteroid mission will be powered by xenon ion engine. The engine has successfully tested in orbit on Shijian-9 satellite on November 7, 2012. The probe will visit three asteroids: make a flyby of the first and take pictures, orbit the second, and land on the third. According to earlier reports, potential targets include 12711 Tukmit, 99942 Apophis and (175706) 1996 FG3. |
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Dec 28 2012, 07:17 AM
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#2
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Senior Member Group: Members Posts: 2113 Joined: 13-February 10 From: Ontario Member No.: 5221 |
Apophis? Wow! Are those asteroids listed in respective order to the objective or not? Because even a flyby would tell us loads in terms of hazard potential.
And 1993 FG3 is MarcoPolo's target too... Dual missions to one asteroid; what's not to like? |
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Dec 28 2012, 08:57 AM
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#3
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
does the article give any idea as of the timeline of the mission?
anyway, here is a paper (in Chinese) on the orbit design of a similar multi-target mission using ion propulsion to Nereus, Apophis and to 1999 JU3, the target of Hayabusa 2. the mission would launch in 2017 and reach 1999 JU3 in 2020. the mass of the spacecraft (1000 kg) would make it "launcheable" by a Long March 3A-class launcher Target analysis and low-thrust trajectory design of Chinese asteroid exploration mission |
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Dec 28 2012, 09:38 AM
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#4
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Junior Member Group: Members Posts: 86 Joined: 12-October 05 From: Beijing Member No.: 526 |
The article only gives the first use of the new ion engine in 2015. It is unknown whether the 2015 mission is the asteroid mission.
I have the full text of the paper you quoted which dated July 2011. But I think Ouyang Ziyuan's presentation matches the latest report better. It is also known that a meeting was held in May 2012 on the design of the asteroid mission. Based on all these info, I think we could have an estimated launch time between 2015 and 2017, a flyby of 12711 Tukmit in August 2018, and 99942 Apophis orbit insertion in April 2020, Apophis departure in September 2020, orbit and landing on 1996 FG3 August–December 2023. |
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Jan 14 2013, 03:19 AM
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#5
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Newbie Group: Members Posts: 1 Joined: 17-December 12 Member No.: 6791 |
As far as I know, officially, there is no timeline for an asteroid mission in China. But possible missions are now studied in universities and institutions. I'm also looking forward to this kind of mission.
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Jan 14 2013, 04:05 PM
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#6
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Member Group: Members Posts: 495 Joined: 12-February 12 Member No.: 6336 |
Thank you Yaohua for this information. A proposal to get 3 asteroids visited with one mission could make that attractive that the proposal might get a go ahead.
MOD NOTE: Follow-on discussion re multiple encounters moved here. |
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Jan 22 2014, 06:39 AM
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#7
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
interesting. 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
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Jun 12 2014, 06:48 AM
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#8
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
the latest issue of Acta Mechanica Sinica has several articles related to the asteroid mission:
http://ams.cstam.org.cn/EN/volumn/volumn_3608.shtml |
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Jun 12 2014, 04:14 PM
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#9
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Solar System Cartographer Group: Members Posts: 10251 Joined: 5-April 05 From: Canada Member No.: 227 |
One of those papers concerns shape modelling of Toutatis based on a combination of radar and optical data, the latter from Chang'E 2. One caveat, don't assume the axis of the shape model really coincides with a rotation axis. Their grid matches the one used in a radar modelling paper some years ago (referenced in this paper), but it is not tied to rotation, which is complex for this asteroid. I prefer a rotation axis running the length of the body (slow long axis mode rotation). Normally the rotation axis is the shortest axis, but slow rotators lack the angular momentum to force that to happen.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Sep 26 2015, 09:57 AM
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#10
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
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Jan 18 2016, 08:13 AM
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#11
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
there was a workshop in Beijing earlier this month on the Chinese asteroid mission.
details (in Chinese) are here: http://www.chinaspaceflight.com/satellite/...roid-Probe.html the mission outline, depicted here, shows launch in 2022, rendezvousing with Apophis for 7 months, a flyby of 2002 EX11 and finally rendezvous and landing on 1996 FG3. |
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Feb 13 2016, 04:39 AM
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#12
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Member Group: Members Posts: 684 Joined: 24-July 15 Member No.: 7619 |
there was a workshop in Beijing earlier this month on the Chinese asteroid mission. details ... shows launch in 2022, rendezvousing with Apophis for 7 months, a flyby of 2002 EX11 and finally rendezvous and landing on 1996 FG3. Eh, better hurry up before the Russians blow up Apophis in 2036. Russian scientists want to modify existing intercontinental ballistic missiles to deliver a nuclear warhead that will supposedly obliterate near-earth asteroids that measure up to 50 meters across. They want to test this capability against Apophis, a well known near-earth asteroid that will pass close to Earth in 2036. I mean, what could go wrong, right? |
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Jun 20 2022, 04:03 PM
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#13
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Senior Member Group: Members Posts: 1453 Joined: 26-July 08 Member No.: 4270 |
This mission is now named Tianwen-2, and has gained a comet exploration extended mission after the sample return.
-------------------- -- Hungry4info (Sirius_Alpha)
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Jun 23 2022, 08:11 AM
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#14
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Senior Member Group: Members Posts: 3009 Joined: 30-October 04 Member No.: 105 |
Oh, those plucky Chinese (read that as an ambitious and successful space program).
--Bill -------------------- |
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Apr 24 2024, 12:13 AM
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#15
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Senior Member Group: Members Posts: 2113 Joined: 13-February 10 From: Ontario Member No.: 5221 |
This might actually be another lunar sample return mission (in a very roundabout way)!
Giordano Bruno crater was modeled as the most likely origin point of Kamo‘oalewa, between 1-10 million years ago. |
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