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Nils O. Selåsdal wrote in message ...
the sand, waving its antennae at us. Ofcourse... Then again similar stones I've seen here were actually stones. Fulgurites. |
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In article , "Icarus"
wrote: Paul Morris wrote: snip right-hand image (Sol 5 navcam). So the navcam image is just outside the range that would reveal the "bug." OK I know I'm being really pedantic now but... :-) The aspect ratio for the two images is different - The rock outcrop is significantly wider in the left hand image than in the right, although the height is the same. Hence it seems to me that we should expect the distance from the small white blob to the 'object' to be smaller in the right-hand image than in the left. I think that puts it in the picture still. In fact, I've annotated the pair of images to show how I think the faint features in the two images correspond - go back and have a look: http://www.envf.port.ac.uk/jr/object.html I'm sure it's all academic anyway, since the thing didn't appear in the hazcam images after the rover left the lander, which suggests it probably did blow away, and it was probably only a bit of crap from the lander anyway... :-) You are correct about the aspect ratio. Thanks for clarifying that. In a way, it is a relief to know the object was gone before the rover started rolling. At least it did not get ground into the dust! It seems a little implausible, though, that the object could have blown away. There is no sign of dust devils at the site. With a martian atmosphere of less than 10 millibars and a sheltered location in the crater, it doesn't seem like the wind would be strong enough to move an object of that size, unless it was of extremely low density. Paul -- Email: lastname at best dot com. No spam please. All spam will be complained to sender's ISP. |
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Thread | Thread Starter | Forum | Replies | Last Post |
Variable shape expansion nozzle | Alain Fournier | Space Science Misc | 2 | November 2nd 03 01:58 PM |