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Hayabusa - The Return To Earth, The voyage home
Bill Harris
post Jun 15 2010, 04:15 PM
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QUOTE
OK, I'll have a go. As it was approaching the earth, it's motion was...
So, in a sense, the "ground-track" motion of Hayabusa was, in appearance, much like the view of the retrograde motion of a superior planet. Different causes, but similar-looking.

Indeed, this was a successful mission.

--Bill


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nprev
post Jun 15 2010, 06:13 PM
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Ooo! Hell of a deal, thanks Astro0! smile.gif Think I'd like to hold out for a director's cut with this very happy ending as well.


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A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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lyford
post Jun 15 2010, 10:34 PM
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I think someone could work in a deal for product placement!
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I have nothing but admiration for the team -- they deserve a happy ending.


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Lyford Rome
"Zis is not nuts, zis is super-nuts!" Mathematician Richard Courant on viewing an Orion test
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dmuller
post Jun 16 2010, 12:49 AM
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Hayabusa was aiming more or less directly to Earth, hence seen from Earth it did not move in the sky, it just got bigger. Hayabusa, looking down on Earth, just saw Earth rotating underneath it, left to right ... that corresponds to a right to left (east to west) ground track. Only right at the end was it obvious that it's target was offset from the center of the Earth, and it began moving in the sky. It's a bit like you're standing next to a street and watch a car approach from the distance. Until right at the end, it just gets bigger but has very little horizontal movement away from you ... if you stand right in its path (not recommended), the car will only get bigger and there is no horizontal movement until ... ah well ...

Congrats to the Hayabusa team for bringing it home. Sorry I didn't have enough data to write a realtime simulation for it. I noted delays in ustream and twitter, maybe we need to set up an umsf quick twitter in time for the MSL landing and get people who get NASA TV on TV to update events


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amezz
post Jun 24 2010, 04:00 PM
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Starting to open HAYABUSA sample container http://www.jaxa.jp/topics/2010/06_e.html

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Hungry4info
post Jun 24 2010, 07:10 PM
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Physorg is reporting that Japan has found a trace gas in the capsule.
http://www.physorg.com/news196593989.html

Anyone know anything more official?


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akibow
post Jun 28 2010, 04:58 AM
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QUOTE (Hungry4info @ Jun 25 2010, 04:10 AM) *
Physorg is reporting that Japan has found a trace gas in the capsule.
http://www.physorg.com/news196593989.html

Anyone know anything more official?


The press conference was held in the curation facility of JAXA on June 24.
from blog of Shinya Matsuura , Summary and translate by akibow.

June 18th : checked all capsule and separated sample container by CT.
There was a question that "Yesterday, there was a report that there is no sample larger than 1mm. Is it true?"
They announced that:
The purpose is to check the damage of the capsule sealing, and sealing is OK.
1mm-sliced CT was done , and sample is not detected.
But it doesn't mean there is no 1mm-sized sample.
CT check is optimized for O-ring and sample tube structure check, not for internal sample check.
We have data that the grain of 3-5mm or more can be detected if it is a silicate.
It is understood that there is no such size sample.

June 22th: measured pressure in the capsule
After the atmospheric pressure in the inside and outside of the capsule had been arranged, the gas in the capsule was gathered.
The element of the gas has not been understood yet.
It may be from itokawa, may be from atmosphere of earth.
Sealing is worked correctly.
Result of gas analysis will come out with announce of initial analysis.

June 24th:started sample container opening
Opening hatch is scheduled in July.(press release says it tooks one week.)
The person in charge is explaining as follows.
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Because it is only one sample, I want to do steadily.
For instance, the wire of the loose stop of the bolt is removed when loosening a bolt and removing, and the bolt is turned. Because there is a possibility that the sample adheres also in the bolt and the loose stop wire, numbering is done after everything is collected and it keeps it. Only removing the screw takes considerable time.
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After opening, they search for particles by microscope.
They can pickup 5 or 10 micrometer sized particle.
All parts of capsule is stored.
In the future, it is possible to handle 1 micrometer sized particle

Five men of curation facility and and three men of researcher is working for examination of capsule.
The researcher of NASA is attending work, and the monitor and advice are done.


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akibow
post Jun 28 2010, 08:51 AM
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You might see a bulletin board here about the sample analysis relation.

Hayabusa Post-Landing & Science Results
http://www.unmannedspaceflight.com/index.p...15&start=15


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pandaneko
post Jun 28 2010, 09:16 AM
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QUOTE (akibow @ Jun 28 2010, 05:51 PM) *
You might see a bulletin board here about the sample analysis relation.

Hayabusa Post-Landing & Science Results
http://www.unmannedspaceflight.com/index.p...15&start=15


Dear Akibou

What you carried just before this is really a very significant contribution to the forum. I would strongly suggest that you upload the suff ditectly into the post landng portion of the forum from now on so that everybody can find the latest status. They are keen to find out!

Besides, landing has been done, after all.

Naturally, my own postings will be limited in scope and depth as I can only pick up newspaper articles. I can be quicker re newspaper reported materials as I am fairly free everyday after 16:00. I am a retired physicist myself. That is why.

Two pronged contributions must be useful for the forum readers. Your posting did solve some of the things I wanted to ask more about. Thank you!!! I am very exited about all this!!!

Pandaneko
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Paolo
post Jun 28 2010, 06:06 PM
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A good wrap-up of Hayabusa reentry from Aviation Week JAXA Searching Hayabusa Capsule For Samples
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eoincampbell
post Jun 29 2010, 04:11 AM
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Very informative link, excellent, thanks, fills in some gaps in the story... for now...


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Astro0
post Jul 5 2010, 08:13 AM
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Post landing information and sample-capsule studies - further posts moved here for discussion - ADMIN
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pandaneko
post Jan 19 2011, 12:49 PM
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This news just in.

Apparently, Hayabusa's journey will be made into a cinema film, with a lot of VFX scenes, views only seen by Hayabusa itslef on large screens, due out next year.

I want to see it!

Pandaneko
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