It wouldn't be catastrophic: http://down2earth.eu/impact_calculator/input.html?lang=en http://down2earth.eu/impact_calculator/input.html?lang=en But we haven'

It wouldn't be catastrophic: http://down2earth.eu/impact_calculator/input.html?lang=en http://down2earth.eu/impact_calculator/input.html?lang=en But we haven't figured out detection, we have about 1% chance to detect a larger one currently, depending on several parameters.