2023 DW is a near-Earth asteroid of the Aten group. It is approximately 50 meters (160 feet) in diameter, roughly the size of the asteroid that caused the Tunguska event,[a] and was discovered by Georges Attard and Alain Maury, from the MAP (Maury/Attard/Parrott) asteroid search program in San Pedro de Atacama on 26 February 2023, when it was 0.07 AU (10 million km) from Earth.[1] On 28 February 2023, with an observation arc of 1.2 days, it was rated 1 on the Torino scale for a virtual impactor on 14 February 2046 at 21:36 UTC.[6] The nominal approach is expected to occur about eight hours before the impact scenario at 14 February 2046 13:15 ± 72 minutes.[3] Between 5–8 March, the asteroid was not observed as it was within 40 degrees of the waxing gibbous moon.[7] On 14 March 2023 the European Space Agency was the first to drop to a Torino scale rating of 0.[8] Sentry dropped to a Torino scale rating of 0 on 16 March 2023.[9] It was completely removed from both risk tables on 20 March 2023.[10]