8月18日付「小惑星 2020 QG が地球を掠める」の続報です。
この小惑星の接近・通過について NASA と ESA(欧州宇宙機関)がツイートしています。NASAは、地球に衝突するとしても(この大きさであれば)大気圏内でバラバラになる可能性が高い、ESA は、地球から 3000km 未満のところを通過した、と述べています:
#asteroid 2020 QG, discovered by @ztfsurvey and roughly 10 to 20 feet (3 to 6 meters) across, is very small by asteroid standards and would likely break up in Earth's atmosphere if it were to impact our planet. Learn more: https://t.co/pz6a9XnCpK pic.twitter.com/bJ6AOOj4DH
— NASA Asteroid Watch (@AsteroidWatch) August 19, 2020
A couple of days ago, @ztfsurvey discovered the closest-ever asteroid to pass Earth and not hit: 2020 QG
— ESA Operations (@esaoperations) August 18, 2020
Two observatories supported by ESA's #PlanetaryDefence Office followed up, determining the small object, just a few metres in diameter, had passed less than 3000km from Earth pic.twitter.com/PchiVjDamL
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