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As you can tell, I substantially revised this page with new content. I wrote about the delay in rendezvous from June to September, eliminated the part about "phase I" and "phase II" since it's likely that the mapping schedule has been revised due to the delay, and talked about the Minerva lander. -- Centurion328 19:51, 10 Jun 2005 (UTC)
Anyone knows the original meaning of term "Hayabusa".. From Japanece history as I guess.. —The preceding unsigned comment was added by 194.145.244.28 ( talk • contribs) .
To answer the earlier question, hayabusa means peregrine falcon in Japanese. -- Moki80 21:13, 12 Jun 2005 (UTC)
Hayabusa is the worlds fastest flying bird. That is why Suzuki named its flagship motorcycle GSX1300R a Hayabusa. —The preceding unsigned comment was added by 207.41.94.220 ( talk • contribs) .
"Hayabusa is the first spacecraft designed to deliberately land on an asteroid and then take off again." - I wouldn't call it landing, the main spacecraft doesn't touch the surface of the asteroid (if all goes well). -- Bricktop 00:50, 5 October 2005 (UTC)
At IAF in Fukuoka last week Hayabusa was announced to be 3 km from the asteroid Itokawa and new close up views were presented. Minerva will be dropped from an altitude of 30 meters. Hektor 23:35, 23 October 2005 (UTC)
Is the mission a complete failure due to the problems with MINERVA? Or will Hayabusa still be able to land on the surface of this asteroid... Alex 04:18, 13 November 2005 (UTC)
The text describing the miniature NASA rover, which was cancelled, appears twice. I can see why it does, as it fits in both sections, but it feels wrong when reading the article. I'd suggest removing it from the section on Minerva mini-lander, and leaving it in the section on Changes in mission plan. 82.18.44.214 00:01, 12 November 2005 (UTC)
I think this doesn't fit well in article, so I'll write here: Information from Shin'ya Matsuura's blog, which quotes JAXA public relations e-mail:
Project manager Jun-ichiro Kawaguchi's comment:
Q) Did MINERVA land on Itokawa?
A) There's no indication of that.
Q) Is there possibility of orbiting around Itokawa?
A) Since we're not observing cyclic ON/OFF signal change, probability of orbiting is low, unless it is some exceptional case.
Q) Is there possibility of MINERVA to return and fall to the asteroid surface?
A) Theoretically, there's possibility of falling by solar radiation pressure.
Its velocity of escaping Itokawa was 8.3cm/sec at infinity.
In case of MINERVA, it will be decelerated by solar radiation by 1.4cm/s/day, and this works like gravity.
It will stop ascending in 6 or 7 days, and it will go back to the same distance from sun around Itokawa after about same duration. That will be 2 weeks in sum.
If the returned position is close enough to Itokawa, it might collide with its surface. If it passes nearby, it will be swung by Itokawa's gravity, and since it isn't directed toward sun, it will gradually pushed away.
For about two weeks, I expect to monitor with Hayabusa's receiver. At least it will be blown back by solar radiation, so, if it is to be inside Hayabusa's receiving antenna pattern, it will be able to communicate. With that result, and after taking some time to lock on, we can deduce its trajectory.
We will continue to use the receiver to monitor the signal from MINERVA.
Q) Is MINERVA a failure?
A) As an engineering experiment payload, its function as probe robot such as its release, communication, data relay transfer, image acquisition, instrument data transfer are working in the place where it is, so I think I can say it proved the functionality.
As for the scientific observation: Although for short duration, temperture measurement affected by heat radiation was done, which I consider is meaningful.
-- Fukumoto 20:01, 13 November 2005 (UTC)
Please see the following: http://www.space.com/businesstechnology/051214_after_hayabusa.html
I would edit the article, but do not feel like it at the moment. -- Marsbound2024 02:56, 19 December 2005 (UTC)
According to today's AP story, analysis of the data shows that "the probe did not show that it had fired a metal projectile onto the asteroid's surface during landing, as previously believed." Not sure what the source of this statement is, though. Rmhermen 23:10, 7 March 2006 (UTC)
"Second, since it was the first-ever soft contact with the surface of an asteroid it has enormous influence on further asteroid missions."
Is this statement from the 'Scientific and engineering importance of the mission' section correct? From what I have read on the NEAR Shoemaker article (the 'Orbits and landing' section), Shoemaker was the first-ever soft contact landing on an asteroid (even though the orbiter wasn't originally designed for landing). 61.68.149.160 15:32, 17 April 2007 (UTC)
I've updated the "artist's impression" to show the last iteration of images that I drew for ISAS. It's more accurate and detailed than the one it replaces (which I also drew) - and on that topic, I for one would like some more pictorial references for MINERVA. This was a highly innovative micro-lander, and it has very little public-domain information about it.
JGarry 12:13, 6 May 2007 (UTC)J.R.C. Garry
The article states that "there is a high probability that some dust swirled into the sampling chamber". Since there is no atmosphere to cause such swirling this probably needs to be reworded. I would change "swirled" to "was deflected" but I don't want to without reading the words used by scientists connected with the mission. Rsduhamel ( talk) 19:15, 27 May 2008 (UTC)
Editors should take note of Wikipedia:Manual of Style (dates and numbers) and Wikipedia:Manual of Style (dates and numbers)/Date autoformatting. Although I myself will not edit the article for unlinking only. -- Fukumoto ( talk) 04:58, 8 February 2009 (UTC)
Nevertheless JAXA publishes English web pages in most occasions, many citation and notes rely on Japanese versions of JAXA web pages. Let's use English articles as much as possible. Hrkoew ( talk) 08:48, 27 November 2009 (UTC)
In the context of this article, "Hayabusa" is a proper noun (the name of the space probe and associated mission) and not simply a foreign word; therefore it need not (and should not) be italicized. See the section on italics in Wikipedia:Manual of Style. The article was very inconsistent on this point and has been tidied up. Piperh ( talk) 08:20, 15 March 2010 (UTC)
The BBC article says that there were amazing surface photos. I can't seen any on the Nasa website ... are there any to be had for this article? -- maxrspct ping me 11:30, 31 May 2010 (UTC)
There are a number of contradictions with Japanese version of this page. For example, the main mission of this project, as Japan Aerospace Exploration Agency claims, is mechanical testing of the engines. Bringing back samples from Itokawa is not the main mission. -- 91.14.168.202 ( talk) 15:47, 13 June 2010 (UTC)
I dont know whether these are of any significance or use to this artical, however I'f uploaded a photograph and crop taken of the re-entry onto Commons. They where taken roughly 200km to the south of the final touch down.
http://commons.wikimedia.org/wiki/File:Hayabusa_Spaceprobe_Re-entry.jpg http://commons.wikimedia.org/wiki/File:Hayabusa_Spaceprobe_Trail.JPG —Preceding unsigned comment added by 58.171.254.211 ( talk) 07:14, 15 June 2010 (UTC)
I've removed the noise from the 18mm, the resault being a far cleaner image http://commons.wikimedia.org/wiki/File:Hayabusa_Re-entry_seen_from_Sturt_Highway.jpg —Preceding unsigned comment added by 122.109.197.190 ( talk) 00:50, 9 August 2010
How much did it cost? andycjp ( talk) 06:21, 16 June 2010 (UTC)
its just damned odd. i would add the picture myself but i dont want to f*ck up the article, if no ones added it or replied to this comment in a few days I will attempt to "be bold" and add it myself without mucking up the page :V - CryoKeen —Preceding unsigned comment added by 24.16.43.170 ( talk) 09:17, 16 April 2011 (UTC)
on the lead's image ( http://en.wikipedia.org/wiki/File:Hayabusa_hover.jpg) there seems to be a little blue...dealie on the left side near the center of the picture. Does anyone know what that is? I couldnt find any corresponding description on the page about it, and since it was made on a computer, i have to assume it was put there intentionally. 74.132.249.206 ( talk) 18:40, 28 August 2011 (UTC)
I tried to look up but I don't know the keyword ("mileage"?). See Hayabusa Spacecraft Returns With Fiery Show: "The capsule's safe return caps a seven-year, four billion miles (six billion kilometers) space journey that took Hayabusa to a near-Earth asteroid and back." 114.25.183.111 ( talk) 07:55, 4 March 2012 (UTC)
Title says it all. If there's a Wiki page, why not change the link? Lythronaxargestes ( talk) 04:00, 17 June 2014 (UTC)
I'm not an expert in either orbital mechanics or the history of the Hayabusa, but wouldn't the "station-keeping heliocentric orbit close by." in fact have been a Lagrangian point? It seems unlikely that JAXA would have wasted energy stationing the craft elsewhere (?) This being the case, 'station-keeping orbit' seems a rather imprecise term. — Preceding unsigned comment added by 80.229.172.13 ( talk) 08:01, 21 August 2014 (UTC)
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