Unmanned landing sites from LRO, Surveyors, Lunas, Lunakhods and impact craters from hardware impacts |
Unmanned landing sites from LRO, Surveyors, Lunas, Lunakhods and impact craters from hardware impacts |
Sep 7 2009, 07:51 PM
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Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
I figured it was time to begin a thread like this, especially since some of us may still be looking for the Surveyor III retro motor casing (assuming the bright dot to the north of the landing site isn't it).
We ought to be seeing some of the other Surveyors fairly soon, I would think. We know most of their locations pretty accurately. Again, I think there is a lot to be gained, both from scientific and engineering standpoints, from detailed imaging of the Surveyor VII landing site, just to mention one. And I really want to see how visible the Lunakhod tracks are as opposed to the MET and LRV tracks. So... until we begin to see images of other unmanned hardware (or the craters caused by same), we could always discuss comparisons of Surveyor III surface imagery to the new LROC images of its landing site here. I'm especially taken by how you can resolve many of the blocks in Block Crater in the LROC image, which gives you a good feel for the explosive nature of the ejecta and roughly where in the ejecta plume a given block might have come from. Might be interesting/useful to apply this information to the samples taken at that location. -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Feb 27 2020, 01:54 AM
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Solar System Cartographer Group: Members Posts: 10194 Joined: 5-April 05 From: Canada Member No.: 227 |
OK, here is a comparison of the suggested features with two versions of maps of the site.
1. The LRO image (rotated north-up) with two identified features, from the link in the previous post. 2. Shaded relief version (by me) of the original Soviet published map (from 'First Panoramas of the Lunar Surface'). 3. A different interpretation of surface features, by me, derived from a reprojected panorama. The differences between the two maps from Luna 9 images show how difficult it is to map the surface from a camera at such a low elevation above the surface. I don't see any obvious matches. Since we don't see the descent stage in the lander images, most likely it is east of the lander (or northeast or southeast), excluded from the tilted panorama. It might also lie west of the lander in an area in the foreground which was also not imaged. 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 PD: 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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Feb 27 2020, 12:06 PM
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Junior Member Group: Members Posts: 45 Joined: 18-July 05 Member No.: 439 |
The differences between the two maps from Luna 9 images show how difficult it is to map the surface from a camera at such a low elevation above the surface. I don't see any obvious matches. Thank you Phil. The Luna 9 maps show area some 15 meters in diameter; I'm not sure if these can be matched against LRO photos. A 1967 description of Luna 9 say it rests in the western slope of a depression of 14-15 meters in diameter, hence the tilt to the east. Such a depression should probably have been visible. Also, we should expect two fresh craters in the vicinity where two equipment sections crashed after separation at descent brake start. |
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