NASA / JPL
Orbital track and position of Earth and Apophis on Jan. 8, 2013.
by Dan Vergano USA TODAY @dvergano, USA TODAY
Updated: 01/08/2013 03:49pm
Nostalgic for last year’s Doomsday worries? You may enjoy pondering an asteroid, named Apophis, passing overhead Wednesday. It also aims for close encounters with Earth in 2029 and 2036.
The asteroid, some 886 feet across, will pass within 9 million miles of Earth on Wednesday, its closest approach this year. The asteroid had attracted a great deal of interest in 2004, when it was discovered, after some estimates suggested it had a chance of hitting Earth in 2036. That possibility was later dismissed after better estimates of its orbit arrived.
Because a tiny chance still exists of the asteroid hitting Earth in 2036, “scientific interest in Apophis is acute, and it’s very important to learn as much as we can about this object when it gets close enough for physical observations,” says a recent statement from NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, Calif. Radar observations of the asteroid, scheduled for February, should refine orbital track analyses of the asteroid’s impact chances.
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