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Astronomers predicted that a space rock that was called 2006 QV89 asteroid might inflict a danger to Earth. The asteroid was expected to make closest approach to Earth in late September 2019. However, as a short observation arc having not been observed since 2006, the Sentry Risk Table showed an estimated 1 in 9100 chance of the asteroid impacting Earth on 9 September 2019.
For the first time the QV89 asteroid was discovered in 2006. BGR reported at the time astronomers could not rule the chances of collision as soon as 2019. David Tholen pf the University of Hawaii’s Institute for Astronomy was part of the team attempting to rediscover the asteroid.
Mr Tholen said in a statement: “There is a big difference between knowing where a hazardous asteroid isn’t, and knowing where it is.
“Our highest priority target for Saturday night was the best 2006 QV89 candidate, and despite some thin cirrus clouds and a lot of moonlight, we needed only four minutes of data to obtain proof that we had found the right object.”
If their calculations are correct, 2006 QV89 will not pose threat to Earth for at least a century. 2006 QV89 is near-Earth asteroid roughly 30 meters (100 feet) in diameter. The asteroid is classed as an Apollo asteroid.
The Canada–France–Hawaii Telescope, extending the observation arc from 10 days to 12 years, recovered the asteroid on 11 August 2019. 2006 QV89 will make a closest approach to Earth on 27 September 2019 at a distance of 0.0463 AU (6,930,000 km; 4,300,000 mi). The August 2019 orbit solution will pass about 600000 km further from Earth than the 2006 orbit solution. It was removed from the Sentry Risk Table on 11 August 2019.
Source: Text; Wikipedia, www.express.co.uk
Image credit; www.express.co.uk
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