2022 QX4
is a Tunguska event-sized asteroid, classified as a near-Earth object of the Aten group, approximately  in diameter. It was discovered by ATLAS on 24 August 2022, when it was  from Earth. On 4 September 2022 with an observation arc of 8 days, it was listed with a 1-in-109 chance of impacting Earth with a Torino scale of 1 for a virtual impactor on 4 September 2068 00:52 UTC. Five precovery images from August 2013 were published on 11 September 2022 extending the observation arc to 9 years and  was removed from the Sentry Risk Table. The nominal approach is expected to occur 26 August 2068. Closest approach to Earth in 2022 occurred on 29 August 2022 at a distance of about 1.8 million km. The asteroid passed about  from Earth on 5 September 1977. References

External links 
 Archive of Sentry Risk Table entry for 2022 QX4 with a 8-day observation arc and a cumulative 0.69% of an Earth impact
 (Expired) risk corridor for 2022 QX4
 Found archival observations of 2022 QX4 from 2013 (MPML 3 September 2022)
 
 
 

Minor planet object articles (unnumbered)
Discoveries by ATLAS
Near-Earth objects removed from the Sentry Risk Table
20220824
20220829