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Your own personal digital Rosetta Comet

Posted 10 years ago

See if you can find a safe place to land a probe...

Import["http://sci.esa.int/science-e/www/object/doc.cfm?fobjectid=54726", "OBJ"]

http://www.bbc.com/news/science-environment-29482548

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POSTED BY: David Reiss
4 Replies

And here is the Rosetta spacecraft taking a selfie at 472 million kilometers from planet Earth and only 16 kilometers from the surface of comet 67P/Churyumov-Gerasimenko. Check out what 472 million kilometers is. This is the source - quoting:

This Rosetta spacecraft selfie was snapped on October 7th. At the time the spacecraft was about 472 million kilometers from planet Earth, but only 16 kilometers from the surface of comet 67P/Churyumov-Gerasimenko. Looming beyond the spacecraft near the top of the frame, dust and gas stream away from the comet's curious double-lobed nucleus and bright sunlight glints off one of Rosetta's 14 meter long solar arrays. In fact, two exposures, one short and one long, were combined to record the dramatic high contrast scene using the CIVA camera system on Rosetta's still-attached Philae lander. Its chosen primary landing site is visible on the smaller lobe of the nucleus. This is the last image anticipated from Philae's cameras before the lander separates from Rosetta on November 12. Shortly after separation Philae will take another image looking back toward the orbiter, and begin its descent to the nucleus of the comet.

enter image description here

POSTED BY: Vitaliy Kaurov

Another way to get the object is via a MeshRegion:

o = Import["http://sci.esa.int/science-e/www/object/doc.cfm?fobjectid=54726"];    
MeshRegion[Cases[o, {"v", __}][[All, 2 ;; 4]], Polygon[Cases[o, {"f", __}][[All, 2 ;; 4]]]]

enter image description here

POSTED BY: Vitaliy Kaurov

I suspect that there is minimal data on the "flat" opposite side and so it has a digitally smoothes surface.

enter image description here

POSTED BY: David Reiss

This is how it looks after import rotated in Mathematica:

o = Import["http://sci.esa.int/science-e/www/object/doc.cfm?fobjectid=54726", "OBJ"];
Show[o, SphericalRegion -> True, Background -> Black]

enter image description here

POSTED BY: Vitaliy Kaurov
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