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- Discovered: June 19, 2004
- Discovered by: Roy A. Tucker, David J. Tholen, and Fabrizio Bernardi
- Mass: 2×1010 kg (estimated)
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Researchers at NASA, Caltech, and the Arecibo Observatory have predicted that the asteroid 99942 Apophis will pass close to earth in 2029 and 2036. It is estimated to pass 18,300 miles over the mid-Atlantic on April 13, 2029, and 30.5 million miles from Earth on Easter Sunday of 2036. These calculations are approximate and there is a 1 in 45,000 possibility of a collision with Earth in 2036.
On April 15, 2008, a German newspaper reported that Nico Marquardt, 13, used "telescopic findings" to conclude that there is a 1 in 450 chance the asteroid will collide with Earth. Marquardt's calculations allegedly took into account the possibility of the asteroid's collision with a satellite, thereby heightening its chances of impacting Earth.
Though some news outlets reported that NASA and the European Space Agency (ESA) found the boy's calculations correct, The Register confirmed that neither organization did. NASA stood by their initial numbers, stating that the satellites Marquardt took into consideration were of "minuscule" risk.
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99942 Apophis Questions
What is the Apophis Keyhole as identified by NASA? 1 AnswerAstronomers are predicting that Apophis will pass through a space nearly 600 meters across, which would set a future impact on 2036. --quote-- Additional obser... read more
Suppose the asteroid Apophis is on a collision course with Earth, could a powerful laser or energy beam be created to destroy it? 4 Answers"By now, we have all heard about a handful of asteroids that are big enough to level a city or two and have a small but non-negligible chance of hitting Earth. ... read more
How many inches will gravitational tethering move Apophis off course? 1 AnswerAs far as I understand it, gravitational tethering is used to change the angle of the asteroid's trajectory. Therefore to ask how many inches the asteroid is mo... read more
What are the top three strategies for stopping apophis from hitting earth? 2 AnswersApophis Keyhole Map http://3.bp.blogspot.com/_k3DGcRnUmms/Snb9o-w7I-I/AAAAAAAAAMs/_DSDcBY02RA/s1600/JPL_Apophis_Keyhole.jpg In December 2008, the Jet Propulsio... read more
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#apophis 99942 pdf Download: HeadOn Impact Deflection of NEAs A Case Study for 99942 Apophis · Download .. http://bit.ly/27LzNE
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The Rings of Earth: http://bit.ly/y0FXp -Maybe we could pulverize 99942 Apophis and get some?
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Measurement and Analysis of Apophis Trajectory (MAAT) was a concept study for a small low cost science mission to asteroid Apophis 99942
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