Hayabusa Post-Landing & Science Results |
Hayabusa Post-Landing & Science Results |
Jul 6 2010, 02:08 PM
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#61
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Forum Contributor Group: Members Posts: 1372 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
Those grains look too big to have been missed before launch, most of the capsule appears to be squeaky clean, with a few dust grains in there collected as it landed, well lets hope for the best.
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Jul 6 2010, 02:16 PM
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#62
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
I agree. I am growing optimistic now.
-------------------- If Occam had heard my theory, things would be very different now.
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Jul 6 2010, 03:47 PM
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#63
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Those grains look too big to have been missed before launch, My association with ISAS profs has been long. What they unanimously told me is this. What one space and astronomy researcher can do during his research life time, at the maximum, is two projects, or even less, given the conception period and subsequent development stages. I have known a few people (both Japanese and overseas on collaboratibve projects) whose projects were simply busted, either from mulfunctioning boosters, or subsequent failures. That is why people take utmost care before launch. Therefore, I do not believe for a moment that there were those Earth originated grains before launch on the cannister. Pandaneko |
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Jul 7 2010, 10:17 AM
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#64
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Futher reporting from the Mainichi newspaper here, dated 18:54 local 7 July.
Apparently, a very large number of grains, much smaller than those (0.01 mm) earlier reported about were found inside the inner tube surface. They apparently scraped the inner surface of the inner tube with a spatuler and found those. No more details are available, just yet. Pandaneko |
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Jul 7 2010, 11:15 AM
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#65
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Sorry, for a moment there I actually thought you said that the techs and scientists involved in this amazing mission, involving mega hi-tech space hardware and minute quantities of literally priceless proto-planetary material, "scraped the inner surface of the inner tube with a spatula".
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Jul 7 2010, 12:20 PM
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#66
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
"scraped the inner surface of the inner tube with a spatula". I quite agree with you here. But, that is what the newspaer said and even my earlier posting about the recovery process expected also mentioned it, in fact with my own comment at that time "how primitive it is!". I think that was a few weeks back now, after landing, of course. However, at that time I also mentioned liquid washing at the same time for recovery of remaining grains not recovered by the spatula. It must be a spatula of special type? I do not know. Pandaneko |
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Jul 7 2010, 01:26 PM
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#67
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Other newspapers are starting to carry similar stories about the large number of grains newly found inside the inner tube.
The Yomiuri newspaper, for instance, says that the size of the newly found grains is from 0.01 mm down to 0.001 mm. There are apparently lots of them. It also said that they used a special spatula for the recovery of these newly found grains. However, it also said that they think that there were a large number of Earth origin grains already resident in the first place inside the tube. They failed to purge them before launch?, why? I am utterly at a loss. Pandaneko |
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Jul 7 2010, 01:49 PM
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#68
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Newbie Group: Members Posts: 14 Joined: 12-December 05 From: Petrozavodsk, Russia Member No.: 607 |
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Jul 7 2010, 01:56 PM
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#69
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
One assumes it was a very special spatula. Presumably they bought it here.
-------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Jul 7 2010, 02:25 PM
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#70
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
"scraped the inner surface of the inner tube with a spatula". This just in: Japanese Scientists have announced that the asteroid Itokawa is made of mint frosting. -------------------- If Occam had heard my theory, things would be very different now.
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Jul 7 2010, 02:34 PM
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#71
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Dear Pandaneko I'll very appreciate direct urls to quoted newspapers here thanks, Andrey Dear Andrey What I have been quoting from are all in Japanese. Would those URLs helP? For instance, here below is the Yomiuri's URL. http://www.yomiuri.co.jp/science/news/2010....htm?from=main1 Please let me know what you think. We can work out solutions, perhaps? Pandaneko |
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Jul 7 2010, 03:03 PM
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#72
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Member Group: Members Posts: 593 Joined: 20-April 05 Member No.: 279 |
One assumes it was a very special spatula. Presumably they bought it here. There's nowhere else I'd go for mine. Andy (Now, how to get Conan the Librarian into a thread??) Don't bother ... Doug |
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Jul 7 2010, 03:06 PM
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#73
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Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
Who wrote 'Don't bother ... Doug'
It sure as he'll wasn't me. |
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Jul 7 2010, 03:09 PM
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#74
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Member Group: Members Posts: 903 Joined: 30-January 05 Member No.: 162 |
IIRC, during daylight hours on the earth's moon there is a phenomena that levitates dust (is there a thread here somewhere about it?). Are these Itakowa particles in the same size range and perhaps a similar phenomena got them into the collection device even though the pyro thing did not fire ?
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Jul 7 2010, 03:21 PM
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#75
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Senior Member Group: Members Posts: 1441 Joined: 26-July 08 Member No.: 4270 |
Good question. IIRC, the haze on the moon isn't really visible unless you're coming around the terminator from the night side looking toward the day side (or on the night side near the terminator like that one Surveyor). I don't think Hayabusa ever got to this orientation, so we may not have any evidence for such things.
Another thing to consider, would the dust achieve escape velocity? Itokawa may have lost the dust with which it did that long ago. What is left may only be small rocks and pebbles that were heavy enough not to levitate (and/or leave). IIRC, the Musea Sea up closed showed more a collection of pebbles than a pure fine sand. -------------------- -- Hungry4info (Sirius_Alpha)
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