Hayabusa - The Return To Earth, The voyage home |
Hayabusa - The Return To Earth, The voyage home |
Nov 28 2005, 03:08 PM
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Member Group: Members Posts: 510 Joined: 17-March 05 From: Southeast Michigan Member No.: 209 |
...starting a new thread for Hayabusa's sampling feedback and the return voyage.
After its nail-biting success in November, will there be enough fuel for the Falcon to make it home? -------------------- --O'Dave
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Guest_BruceMoomaw_* |
Feb 12 2006, 06:03 AM
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Guests |
Oh, yes. Two particularly striking photos that I've never seen before:
(1) http://www.lpi.usra.edu/meetings/lpsc2006/pdf/2463.pdf (Fig. 3): The closest photo taken yet of an asteroid's surface -- with a resolution of only 6 mm/pixel -- showing the surface of the "Muses Sea" where Hayabusa landed for its sampling runs, and revealing that the "pond" is filled not with fine dust but with coarse gravel. (The abstract reveals that the gravel gets gradually and progressively smaller as one moves toward the center of the pond. Definitely size-sorting by seismic shaking.) (2) http://www.lpi.usra.edu/meetings/lpsc2006/pdf/1022.pdf (Fig. 1), making dramatically clear just how incredibly small Itokawa is compared with Eros. The similarity of their surface processes is thus even more striking. |
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Feb 12 2006, 07:24 AM
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
QUOTE (BruceMoomaw @ Feb 12 2006, 06:03 AM) Oh, yes. Two particularly striking photos that I've never seen before: Good find Bruce.(1) http://www.lpi.usra.edu/meetings/lpsc2006/pdf/2463.pdf (Fig. 3): The closest photo taken yet of an asteroid's surface -- with a resolution of only 6 mm/pixel -- showing the surface of the "Muses Sea" where Hayabusa landed for its sampling runs, and revealing that the "pond" is filled not with fine dust but with coarse gravel. (The abstract reveals that the gravel gets gradually and progressively smaller as one moves toward the center of the pond. Definitely size-sorting by seismic shaking.) For a resolution of 6mm per pixel in this image (which according to their scale is about 6.5 meters wide) the original before re-scaling for the pdf it was extracted from, would have been about 1110 pixels wide. The final NEAR photo was 537 pixels over a similar field of view (6 meters), so the Hayabusa image is nearly twice the resolution of NEAR's best of (11 mmpp). -------------------- If Occam had heard my theory, things would be very different now.
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