Rosetta - Early Orbital Operations at Comet 67P C-G, August 6, 2014 - November 13, 2014 |
Rosetta - Early Orbital Operations at Comet 67P C-G, August 6, 2014 - November 13, 2014 |
Aug 7 2014, 08:15 PM
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#61
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
BBC released very interesting footage from (evidently) OSIRIS camera. Images are from 3. August 2014.
Now it's possible to derive stereo images directly from the published images. This is comparison with my "synthetic" stereo image of 67P (it's the lower pair). You can see that top left image is exactly the same image as lower right image. EDIT: This version was deleted and was replaced by this one. -------------------- |
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Aug 7 2014, 09:08 PM
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#62
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Member Group: Members Posts: 866 Joined: 15-March 05 From: Santa Cruz, CA Member No.: 196 |
heres a <sloppy> crosseye of the topography inside that shadowed 'hole' area inside the pole of the smaller clump at right in machi's stereo, this based on the sequence Emily posted earlier
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Aug 7 2014, 09:20 PM
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#63
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Member Group: Members Posts: 334 Joined: 11-December 12 From: The home of Corby Crater (Corby-England) Member No.: 6783 |
What is the estimated mass of this object?
What is the mass of the lander? Depending on the above, the gravitational pull on the lander may be negligable, so it could be.. pick a spot-any spot. |
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Aug 7 2014, 09:33 PM
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#64
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Solar System Cartographer Group: Members Posts: 10146 Joined: 5-April 05 From: Canada Member No.: 227 |
It's more about local geology and safety. How smooth is the area? Is it coarse-grained or fine-grained, or maybe quite solid? (from thermal inertia). Is there any evidence of volatiles, or is it depleted, baked dry? Is the area active during the run-up to landing, or is it inert?
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Aug 7 2014, 10:16 PM
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#65
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
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Aug 7 2014, 10:36 PM
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#66
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Senior Member Group: Members Posts: 4246 Joined: 17-January 05 Member No.: 152 |
BBC released very interesting footage from (evidently) OSIRIS camera. You should find slightly better image quality from the original BBC story here: http://www.bbc.co.uk/news/science-environment-28659783 |
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Aug 7 2014, 11:18 PM
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#67
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
Yes, I should.
I saw that article but I have disabled automatic playback for flash so I overlooked this video and Google found the other one. BTW, here is animated GIF. -------------------- |
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Aug 8 2014, 12:02 AM
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#68
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Member Group: Members Posts: 201 Joined: 16-December 13 Member No.: 7067 |
I had to grab larger frames from the video and slow it down
http://i.imgur.com/T8oZl7a.gif Two days of utter amazement so far Edit: album of the screen captures: http://imgur.com/a/0Lo1E#0 |
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Aug 8 2014, 12:27 AM
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#69
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
They look good, Doug. Do you provide textures and are the models u-v'd or are they just for printing? Nope - just un-textured STL's for printing. Any chance of Gaspra? I'll look into it - but it would be pretty low res so might not be worth the effort. |
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Aug 8 2014, 12:41 AM
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#70
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Newbie Group: Members Posts: 14 Joined: 4-April 06 From: San Francisco, CA Member No.: 732 |
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Aug 8 2014, 01:00 AM
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#71
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
Thanks! It's impossible with my Internet connection to grab this video at full resolution. Here is very interesting view on the head of the comet 67P from two grabbed images. Credit for original images: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA. -------------------- |
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Aug 8 2014, 01:13 AM
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#72
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
And here is comparison between stereo images with both real images (lower one) and with one synthetic image (top) in the pair.
Thanks to anticitizen2 both pairs have now same resolution but the lower pair is still somewhat blurred. I deleted the older version. -------------------- |
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Aug 8 2014, 02:18 AM
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#73
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Member Group: Members Posts: 201 Joined: 16-December 13 Member No.: 7067 |
And thank you for the 3D images! Those have truly brought me there next to the comet.
I feel like I owe you a dozen gasps of amazement from the people around me as I showed them your image of the comet in 3D |
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Aug 8 2014, 03:16 AM
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#74
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Junior Member Group: Members Posts: 20 Joined: 4-August 14 From: St. Louis, Missouri Member No.: 7230 |
The processed photos released to date all have good contrast and likely have been brightened and stretched to some extent. Have any been processed to show the comet's actual appearance?
I haven't seen much discussion on albedo except mention that 67P/C-G is very dark, as would be expected if much of the nonvolatile remnants on the surface are similar in composition to carbonaceous chondrite meteorites. Karl |
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Aug 8 2014, 05:39 AM
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#75
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Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
INCREDIBLE, Daniel--thank you!!!!
In my opinion this is by far the most classically 'alien'-looking little world examined by spacecraft to date--straight out of a 1950s B-movie. Amazing to think of how different the processes by which all these odd, jagged landforms arose must be from those we've observed elsewhere. With any luck, though, we'll be able to see those processes in action a bit. -------------------- 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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