Rosetta flyby of Asteroid Lutetia |
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Rosetta flyby of Asteroid Lutetia |
 Jul 10 2010, 03:54 PM
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#61
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 Senior Member  Group: Members Posts: 1005 Joined: 26-July 08 Member No.: 4270  |
Well, we passed closest approach a few minutes ago.
Edit: And here comes the live webcast. -------------------- -- Hungry4info (Sirius_Alpha)
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Jul 10 2010, 04:21 PM
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#62
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Senior Member Group: Members Posts: 5551 Joined: 5-April 05 From: Canada Member No.: 227 |
-------------------- ... because the Solar System ain't gonna map itself.
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Jul 10 2010, 04:22 PM
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#63
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Senior Member Group: Members Posts: 1005 Joined: 26-July 08 Member No.: 4270 |
Behold Lutetia:
Edit: He beat me to it
Attached thumbnail(s)
-------------------- -- Hungry4info (Sirius_Alpha)
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Jul 10 2010, 04:38 PM
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#64
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Member Group: Members Posts: 448 Joined: 19-February 05 Member No.: 173 |
QUOTE (Paolo @ May 1 2010, 08:38 AM)  This is interesting: the Ptolemy mass spectrometer on the Rosetta orbiter will attempt to detect a faint exosphere around Lutetia Alice UVS is doing the same. |
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Jul 10 2010, 04:48 PM
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#65
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 Senior Member Group: Members Posts: 1628 Joined: 20-November 04 From: Iowa Member No.: 110 |
Contact reestablished following close approach
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Jul 10 2010, 05:02 PM
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#66
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 Member Group: Members Posts: 383 Joined: 1-May 06 From: Scotland (Ecosse, Escocia) Member No.: 759 |
Wonderful images! 100 km across and no evidence of gravitional rounding. Any thoughts / evidence on what size that effect kicks in?
Congratulations to ESA. |
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| Guest_cassioli_* |
Jul 10 2010, 05:03 PM
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#67
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Guests |
fly-by mission accomplished.
 heading to the comet now. 
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Jul 10 2010, 05:07 PM
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#68
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Senior Member Group: Members Posts: 5551 Joined: 5-April 05 From: Canada Member No.: 227 |
"100 km across and no evidence of gravitional rounding. Any thoughts / evidence on what size that effect kicks in?"
That depends on the internal strength of the object, including its temperature history. Vesta at 500 km across is noticeably irregular - but rocky - whereas icy Mimas is only 400 km across and a bit elongated by tidal effects but a nice ellipsoidal shape. Phil -------------------- ... because the Solar System ain't gonna map itself.
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Jul 10 2010, 05:08 PM
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#69
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Newbie Group: Members Posts: 15 Joined: 14-October 09 From: Lobos, Argentina Member No.: 4977 |
I just put the Lutetia close-up animation. I'll add more info for the Spanish speakers too: http://www.espaciosur.com.ar/2010/07/image...on-rosetta.html - Cheers.
-------------------- www.espaciosur.com.ar | astronomía para todos
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Jul 10 2010, 05:27 PM
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#70
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 Senior Member Group: Members Posts: 2491 Joined: 15-January 05 From: center Italy Member No.: 150 |
Loiserl, you beat me. In my version, I introduced dissolvence between most recent frames because the time lapse is clearly larger...
Attached thumbnail(s)
-------------------- I always think before posting! - Marco -
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Jul 10 2010, 05:37 PM
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#71
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 The Poet Dude Group: Moderator Posts: 5548 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
QUOTE (Hungry4info @ Jul 10 2010, 04:36 PM) Phil Stooke just posted that. Very easily done, and it really doesn't matter, does it? -------------------- |
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Jul 10 2010, 06:10 PM
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#72
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Senior Member Group: Members Posts: 5551 Joined: 5-April 05 From: Canada Member No.: 227 |
Playing around with contrast a bit and rearranging the images in the big composite...
One frame was flipped (mirror-image) left-right - the top one in the left column in this version. The second image in the sequence (one up from lower left corner) is approximately the same view as the last image, so these cover a full rotation. They are approximately north-up here. Images of course are courtesy ESA and the Rosetta and OSIRIS teams, and a big thanks to them for releasing them so soon. Phil -------------------- ... because the Solar System ain't gonna map itself.
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Jul 10 2010, 07:23 PM
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#73
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Senior Member Group: Members Posts: 2491 Joined: 15-January 05 From: center Italy Member No.: 150 |
Thank you Phil for your analysis... I used last two frames (with some relative rotation) in order to create following stereograms:
crossed eyes:
parallel eyes:
Some artifacts/incongruences are due to slightly different illumination, I guess! -------------------- I always think before posting! - Marco -
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Jul 10 2010, 09:03 PM
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#74
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Senior Member Group: Members Posts: 1628 Joined: 20-November 04 From: Iowa Member No.: 110 |
Live webcast is started
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Jul 10 2010, 09:04 PM
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#75
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 Senior Member Group: Members Posts: 3559 Joined: 1-October 05 From: Croatia Member No.: 523 |
http://webservices.esa.int/blog/post/5/1247
Lutetia and Saturn!!! http://webservices.esa.int/blog/gallery/5/..._and_Saturn.png -------------------- |
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