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Home → Space

NASA radar observation shows asteroid 2012 DA14 flyby [VIDEO]

by Tibi Puiu
February 21, 2013
in Space

I realize we’re maybe bugging some of you with these constant asteroid/meteor pieces here on ZME Science, but for what’s it worth we found this recently released NASA video comprised of radar images during 2012 DA14’s recent flyby very interesting.

2012 DA14 radar observationThe movie, which combines 73 radar-images  captured over the course of eight hours on the night of Feb. 15-16, was compiled by NASA’s Jet Propulsion Laboratory. Now, if you’ve already pressed play and seen the movie, you might have felt a bit disappointed. But even though the asteroid might look like something off of Space Invaders, the image resolution is still a whooping 13 feet (4 meters) per pixel.

That goes a bit to show how massive DA14 really is and how devastating an eventual collision of the asteroid with our planet might have caused. These radar observations provide the most accurate measurement of DA14,  40 meters along its long axis. Also, the radar imaging also help better fine-tune calculations of 2012 DA14’s future orbit by getting a better fix on its size, shape, rotation, surface features and surface roughness. Next time it comes by Earth again, we’ll be ready.

If you’re interested, we’ve also posted some live video footage of 2012 DA14 captured by optical cameras and telescopes.

References
  1. Tibi Puiu, Asteroid 2012 DA14 close flyby today, meanwhile unrelated meteorite blazes over Russia, 2013
  2. Tibi Puiu, Videos of asteroid 2012 DA14 making its flyby past Earth, 2013
Tags: 2012 da14asteroidmeteormeteorite

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