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Conspiracies & Cover-ups
Asteroid 2012 TC4 - How comes nobody picks up on this?
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<blockquote data-quote="heka2015" data-source="post: 158827" data-attributes="member: 7351"><p>NASA Facts on Chelyabinsk Meteor (NASA/JPL Near-Earth Object Program Office ,March 1, 2013, Don Yeomans & Paul Chodas)</p><p>(<a href="https://web.archive.org/web/20130430164941/http://neo.jpl.nasa.gov/news/fireball_130301.html" target="_blank">Source</a>)</p><p>- relatively small asteroid approximately 17 to 20 meters in size</p><p>- entering the Earth's atmosphere at high speed and a shallow angle</p><p>- released a tremendous amount of energy, fragmented at high altitude, and produced a shower of pieces of various sizes that fell to the ground as meteorites</p><p>- The fireball was observed not only by video cameras and low frequency infrasound detectors, but also by U.S. Government sensors</p><p></p><p>NASA AMES Research Center Science Article</p><p>(<a href="http://cams.seti.org/Popova2013-ms.pdf" target="_blank">Source</a>)</p><p>- This was the biggest impact over land</p><p>since the poorly observed Tunguska impact in 1908, for which kinetic energy estimates range</p><p>from 3 to 5 to 10 to 50 MT .</p><p></p><p>- Compared with the much larger Tunguska event, Chelyabinsk was only on the</p><p>threshold of forming a common shock wave around the fragments when it broke at peak</p><p>brightness. Fragments were spatially isolated enough to be efficiently</p><p>decelerated, avoiding the transfer of momentum to lower altitudes and resulting in less damage</p><p>when the blast wave reached the ground.</p><p></p><p>Harvard Article (Martin Beech, Duncan Steel ,20 Feb. 1995)</p><p>(<a href="http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1995QJRAS..36..281B&amp;data_type=PDF_HIGH&amp;whole_paper=YES&amp;type=PRINTER&amp;filetype=.pdf" target="_blank">Source</a>)</p><p>- ...If an object a few meter in diameter chances to enter the atmosphere a spectacular fireball is produced, and a meteorite dropping event will probably take place.</p><p></p><p>Space.com (<a href="https://www.space.com/23423-russian-fireball-meteor-airburst-risk.html" target="_blank">Source</a>)</p><p>Space.com (<a href="https://www.space.com/19829-russian-fireball-meteor-blast-infographic.html" target="_blank">Source</a>)</p><p>- the event is helping to flag a worrisome finding: Scientists have misjudged the frequency of large airbursts.</p><p>- Computer simulations also imply that such airbursts cause more damage than nuclear explosions of the same yield, which are typically used as an analogue to ballpark impact risk.</p><p>- biggest meteor blast since tunguska</p><p><img src="https://upload.wikimedia.org/wikipedia/commons/7/7b/SmallAsteroidImpacts-Frequency-Bolide-20141114.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>Try to spot Chebyalinsk. Easy one.</p></blockquote><p></p>
[QUOTE="heka2015, post: 158827, member: 7351"] NASA Facts on Chelyabinsk Meteor (NASA/JPL Near-Earth Object Program Office ,March 1, 2013, Don Yeomans & Paul Chodas) ([URL='https://web.archive.org/web/20130430164941/http://neo.jpl.nasa.gov/news/fireball_130301.html']Source[/URL]) - relatively small asteroid approximately 17 to 20 meters in size - entering the Earth's atmosphere at high speed and a shallow angle - released a tremendous amount of energy, fragmented at high altitude, and produced a shower of pieces of various sizes that fell to the ground as meteorites - The fireball was observed not only by video cameras and low frequency infrasound detectors, but also by U.S. Government sensors NASA AMES Research Center Science Article ([URL='http://cams.seti.org/Popova2013-ms.pdf']Source[/URL]) - This was the biggest impact over land since the poorly observed Tunguska impact in 1908, for which kinetic energy estimates range from 3 to 5 to 10 to 50 MT . - Compared with the much larger Tunguska event, Chelyabinsk was only on the threshold of forming a common shock wave around the fragments when it broke at peak brightness. Fragments were spatially isolated enough to be efficiently decelerated, avoiding the transfer of momentum to lower altitudes and resulting in less damage when the blast wave reached the ground. Harvard Article (Martin Beech, Duncan Steel ,20 Feb. 1995) ([URL='http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1995QJRAS..36..281B&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf']Source[/URL]) - ...If an object a few meter in diameter chances to enter the atmosphere a spectacular fireball is produced, and a meteorite dropping event will probably take place. Space.com ([URL='https://www.space.com/23423-russian-fireball-meteor-airburst-risk.html']Source[/URL]) Space.com ([URL='https://www.space.com/19829-russian-fireball-meteor-blast-infographic.html']Source[/URL]) - the event is helping to flag a worrisome finding: Scientists have misjudged the frequency of large airbursts. - Computer simulations also imply that such airbursts cause more damage than nuclear explosions of the same yield, which are typically used as an analogue to ballpark impact risk. - biggest meteor blast since tunguska [IMG]https://upload.wikimedia.org/wikipedia/commons/7/7b/SmallAsteroidImpacts-Frequency-Bolide-20141114.jpg[/IMG] Try to spot Chebyalinsk. Easy one. [/QUOTE]
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Asteroid 2012 TC4 - How comes nobody picks up on this?
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