HAMO, (aka High Altitude Mapping Orbit) |
HAMO, (aka High Altitude Mapping Orbit) |
Oct 12 2011, 01:15 PM
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#91
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Solar System Cartographer Group: Members Posts: 10227 Joined: 5-April 05 From: Canada Member No.: 227 |
Once you have a DEM you can project it any way you like. A DEM of North America might be represented without planetary curvature, in fact it probably would be most often. This one is shown with a plane datum, the next might be done with curvature added. No problem either way. Anyone may prefer one over the other, but don't represent the other as wrong. In time we'll have everything.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf 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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Oct 14 2011, 12:09 AM
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#92
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Senior Member Group: Members Posts: 1592 Joined: 14-October 05 From: Vermont Member No.: 530 |
Slew of new stuff:
http://dawn.jpl.nasa.gov/feature_stories/s...rly_results.asp http://dawn.jpl.nasa.gov/multimedia/vesta_dawn_gallery.asp http://dawn.jpl.nasa.gov/multimedia/imageo...p?date=20111012 Some pretty cool slides: http://dawn.jpl.nasa.gov/multimedia/images/slide5_image.jpg etc. Replay of conference here: http://www.ustream.tv/recorded/17833902 Interesting comments about the troughs. |
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Oct 17 2011, 06:27 PM
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#93
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Solar System Cartographer Group: Members Posts: 10227 Joined: 5-April 05 From: Canada Member No.: 227 |
The latest image releases at the Dawn site are much higher resolution - very nice indeed. And it will get even better!
Phil http://dawn.jpl.nasa.gov/multimedia/imageo...th=2011-October -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf 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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Oct 18 2011, 05:30 AM
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#94
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
The latest image releases at the Dawn site are much higher resolution - very nice indeed. And it will get even better! True. But Oct,12 image showing boulders in the crater floor is quite "flat" and deserves an enhanced version: -------------------- I always think before posting! - Marco -
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Oct 22 2011, 08:01 PM
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#95
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Junior Member Group: Members Posts: 50 Joined: 27-June 11 From: Katlenburg-Lindau, Lower Saxony, Germany Member No.: 6038 |
Any opinions on the strange half-craters on the recent IOTDs?
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Oct 22 2011, 09:57 PM
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#96
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Senior Member Group: Members Posts: 1592 Joined: 14-October 05 From: Vermont Member No.: 530 |
Sure looks like a trough between the two.
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Oct 22 2011, 11:55 PM
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#97
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Member Group: Members Posts: 204 Joined: 20-November 05 From: Mare Desiderii Member No.: 563 |
Railway embankment between the two craters?
(Broad gauge, obviously.) |
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Oct 23 2011, 09:14 AM
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#98
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Member Group: Members Posts: 184 Joined: 2-March 06 Member No.: 692 |
It's strange isn't it. I see areas on vesta that look like hummocky flow features -like land slide debris - covering the surface. But the half craters look younger than this debris. Could it be that this debris is varying in thickness and distribution so that the the cratering events here punched into only parts of this less consolidated stuff which partially slumped into these craters?
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Oct 24 2011, 07:59 AM
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#99
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Junior Member Group: Members Posts: 22 Joined: 8-March 10 Member No.: 5252 |
The differing depth of loose ejecta may come into it, the boundary of the slump in the lower crater certainly climbs the slope of the smooth wall to the south. But I think that the angle of incidence of the impact may also have an effect. The floor of the crater is not in the center.
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Oct 24 2011, 08:50 AM
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#100
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Member Group: Members Posts: 716 Joined: 3-January 08 Member No.: 3995 |
.
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Oct 24 2011, 10:22 AM
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#101
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
Vesta in almost natural colors (filters centered at 440, 650 and 750 nm).
Two basic images: English captions and 5 other versions are here. Original "raw" images are available here. -------------------- |
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Oct 24 2011, 04:02 PM
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#102
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Junior Member Group: Members Posts: 50 Joined: 27-June 11 From: Katlenburg-Lindau, Lower Saxony, Germany Member No.: 6038 |
Vesta in almost natural colors (filters centered at 440, 650 and 750 nm). Wow, it is very remarkable that, even in natural colors, the ejecta blanket around Oppia has an obviously different shade of gray. Congratulations, Machi, terrific images. -------------------- |
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Oct 24 2011, 04:25 PM
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#103
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Solar System Cartographer Group: Members Posts: 10227 Joined: 5-April 05 From: Canada Member No.: 227 |
... and the full disk one fills in a bit more of the northern hemisphere. Here's my current coverage map of the north pole. Locations may not be very accurate at the terminator but the general appearance is clear.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf 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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Oct 25 2011, 04:01 PM
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#104
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Impressive, Phil!
Is grooves spiral structure real? Which is explaination? I have impression that North pole is hiding something important but I suspect we have to wait looong time before seeing it! -------------------- I always think before posting! - Marco -
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Oct 25 2011, 04:45 PM
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#105
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Junior Member Group: Members Posts: 50 Joined: 27-June 11 From: Katlenburg-Lindau, Lower Saxony, Germany Member No.: 6038 |
I have impression that North pole is hiding something important but I suspect we have to wait looong time before seeing it! Dilo, We are all waiting to see what the north pole hides, and according to our calculations we should be able to see most of it by July 2012. We will keep you posted. -------------------- |
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