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  #31 (permalink)  
Old 09-September-2005, 02:31 PM
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Another Idaho Spud!
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Old 09-September-2005, 03:03 PM
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Quote:
Originally Posted by Jerry Jensen
Another Idaho Spud!
I kind of thought that Eros looked like a dance shoe, or a slipper.
But yes, so far, this one looks like a potato.
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  #33 (permalink)  
Old 10-September-2005, 07:38 PM
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JAXA: Today's Hayabusa

Last update 2005/09/10

Quote:
Distance from Earth : 321,978,150km
Distance from Itokawa : 47km
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Old 11-September-2005, 02:00 AM
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Actually, I'm starting to wonder about all the spuds out there. It seems to be a more common shape than I would have expected. I have a friend who studies such things; I'll ask him.
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Old 11-September-2005, 10:48 AM
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This spud's for you.

Itokawa Image on September 10

From about 30 km:

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Old 11-September-2005, 02:55 PM
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I see this asteroid has some areas that are buried in dust, and some areas that stick out above the tiny sea of dust. It's interesting to see that even tiny asteroids like this (a few hundred meters across) have this nature.

I'm looking forward to seeing much more detailed images soon. The Hayabua team is releasing images with a little bit of delay (a day or two), but they are releasing sone interesting images. Thanks.
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Old 12-September-2005, 06:06 PM
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Latest Itokawa Image Reveals A Strange Asteroid With Few Craters

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Hayabusa continues approaching Itokawa, and its image is growing day by day. This image was taken at 15:00 UTC on September 10 by the visible imager, AMICA.

The distance now from Hayabusa to Itokawa is approximately 30km.
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Old 12-September-2005, 07:21 PM
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Hayabusa arrives. Congratulations to Japan, JAXA, the team, and the spacecraft!

JAXA: Today's Hayabusa

Last update 2005/09/10
Quote:
Distance from Earth : 320,498,100km
Distance from Itokawa : 20km
Hayabusa has pulled to a stop at 20 km from Itokawa.



Color coming soon.

Quote:
The velocity dropped down to zero around 01:17 UTC. [The Doppler velocity difference data] indicates that Hayabusa fired its chemical propulsion thruster so that the relative velocity was canceled.
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Old 12-September-2005, 10:30 PM
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That looks like an ugly piece of dust-covered stuff. I'm looking forward to the detailed images. I was thinking this thing was a shattered piece that escpaed when the moon was formed. Maybe it is, but now looking at it, I'm not so sure. I wonder how it got to look this way?
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Old 13-September-2005, 03:08 AM
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Quote:
Originally Posted by antoniseb
That looks like an ugly piece of dust-covered stuff. I'm looking forward to the detailed images. I was thinking this thing was a shattered piece that escpaed when the moon was formed. Maybe it is, but now looking at it, I'm not so sure. I wonder how it got to look this way?
Maybe not beautiful in human terms, but to other asteroids, that may be one very beautiful one! It's one of those questions I sometimes wonder about when I see bulldogs, or pigs, for example.
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Old 13-September-2005, 05:34 PM
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Space.com: Japanese Space Probe Reaches Asteroid

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The Japanese space probe Hayabusa has approached within 12 miles (20 kilometers) of its target, asteroid Itokawa (1998 SF36).

Scientists at Japan's Institute of Space and Astronautical Science (ISAS) have been monitoring the day-by-day closing in on the asteroid by their craft. ISAS is a research arm of the Japan Aerospace Exploration Agency (JAXA).

ISAS scientists report that images taken by Hayabusa show a contrast of rocky and hilly regions and a smooth area on the asteroid. Further analysis of the imagery and other data may help decipher the origin and evolution of the asteroid.
Sky and Telescope: Hayabusa Arrives at Asteroid Itokawa

Quote:
For the next two weeks the spacefraft will maintain its 20-km standoff distance on the asteroid's sunlit side, moving inward to just 7 km away by month's end, to map the entire surface as Itokawa slowly rotates every 12.1 hours. In addition to its Asteroid Multiband Imaging Camera (AMICA), which records light at seven visible and infrared wavelengths, Hayabusa carries a laser altimeter to measure surface heights and two spectrometers to analyze mineral compositions. Initial images from the camera show that Itokawa is about 600 meters long and very elongated, appearing much as expected from ground-based scrutiny.
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Old 14-September-2005, 03:55 AM
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Way to go Japan. JOTO
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  #43 (permalink)  
Old 14-September-2005, 11:50 AM
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Default Re: HAYABUSA mission
I for one welcome our new Potato overlords and their mascot, Spuds MacKenzie!




Meanwhile, congrats to JAXA et al on a successful mission so far. And it is interesting that this shape should be so predominant. I was expecting to see more in the way of rutabagas, eggplants, and onions.
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Old 15-September-2005, 09:22 AM
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Color composite (of a mostly gray object):

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Old 15-September-2005, 10:36 AM
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I had been waiting for some time for more news on Hayabusa & at long last iy has arrived! During this week the probe has sent back several images as it came close to the asteroid Itokawa.

This small probe has taken some excellent images & the on going scientific investigations should help us to understand more about the composition of asteroids.

Congratulations to the Japanese team responsible for Hayabusa!
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Old 18-September-2005, 03:35 AM
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It looks like a big clod of dirt, much like the ones I used to see in my garden. But I think this is the smallest asteroid, (clodoid?) we've encountered with a spaceprode.
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Old 27-September-2005, 06:02 PM
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Japanese Asteroid Probe Readied to Make History

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Japan's Hayabusa space probe is poised to edge closer to asteroid Itokawa – a move that sets the stage for an historic attempt to sample and return a specimen to Earth from such an object.

Images taken by the spacecraft of Itokawa are already puzzling scientists.
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  #48 (permalink)  
Old 27-September-2005, 06:42 PM
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Yes, but for some reason JAXA is not releasing more images.
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  #49 (permalink)  
Old 28-September-2005, 06:26 PM
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Quote:
Minerva travels by leaping, using its own momentum by accelerating a weight inside itself.
I really hope this is successful. It is a great test of the gravitational physics involved...
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  #50 (permalink)  
Old 30-September-2005, 03:55 PM
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JAXA: Today's Hayabusa

Last update 2005/09/29

Quote:
Distance from Earth : 308,553,050km
Distance from Itokawa : 10km
Station Keeping History of Hayabusa to Itokawa

Quote:
[...]the station keeping has been carried out satisfactorily. Next week, Hayabusa lowers its altitude to the Home Position, where this task will be much harder due to the high sensitivity. The operation team will continue making an intensive effort to accomplish the proximity observation.
HAYABUSA Data (2005/09/14 "Hayabusa arrived at Itokawa") indicates Home Position is around 7 km distance.
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