100ft asteroid to career past Earth in ‘close’ flyby – NASA

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flyby earth close career asteroid 100ft

Published time: 11 Oct, 2017 17:07

An asteroid measuring about 45 to 100ft (15 to 30 meters) in length is set to skirt by Earth on Thursday.

Asteroid ‘2012 TC4’ will come one-10th of the distance between us and the Moon, sailing just above the orbital altitude of communications satellites, some 26,000 miles (42,000 km) from Earth.  

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While there is no risk of the asteroid impacting Earth, astronomers say this close approach is a perfect opportunity for the International Asteroid Warning Network to work together and coordinate radar observations in a real scenario.

It’s hoped the practice run will help hone the skills of asteroid trackers in the event of an actual strike on Earth. It’s worth noting that no known asteroid is predicted to impact Earth within the next 100 years, reports NASA.

Asteroid trackers are using this flyby to test the worldwide asteroid detection and tracking network, assessing our capability to work together in response to finding a potential real asteroid-impact threat,” said Michael Kelley, program scientist and NASA PDCO lead for the TC4 observation campaign.

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TC4 was first discovered by the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) on Hawaii back in 2012. Based on that initial observation, experts were able to predict another close flyby in the fall of 2017.

The European Space Agency and the European Southern Observatory picked up on TC4 once again in July this year using one of their larger telescopes, and