Tags: Planet.
(332446) 2008 AF4 is an asteroid which was listed on the Sentry Risk Table in January 2008 with a Torino Scale rating of 1. The asteroid showed a 1 in 71000 chance of impact on 9 January 2089. It was briefly downgraded to Torino Scale 0 in February 2008 but still showed a cumulative 1 in 53000 chance of an impact. In March it was back at Torino Scale 1 with a 1 in 28000 chance of impact on 9 January 2089. By mid April 2008 it was back to Torino Scale 0.