Assertion: asteroid's risk | /r/HasProperty | posed by objects of the same size
Facets:
value: larger over the years
type: OTHER
Source sentences:
text: With a 2080 Palermo Technical Scale of −3.58, the odds of impact by 2011 BT 15 in 2080 were about 3800 times less than the background hazard level of Earth impacts which is defined as the average risk posed by objects of the same size or larger over the years until the date of the potential impact.