precovery images from January to April 2016. (diameter ~590 meters) with a 15-day observation showed a 1 in 290,000 chance of impact on 10 September 2074 and showed a 1 in 77,000 chance of impact on 9 September 2081. Cumulatively, this gave the asteroid a 1 in 59,000 chance of impact in the next century. The asteroid was downgraded to 0 after its arc was extended to 16 days with a 1 in 500,000 cumulative chance of impact. It was removed from the sentry risk table entirely on 11 March 2020. (diameter ~600 meters) initially showed, with a 7.6 day observation arc, a 1 in 83,000 chance of impact on 3 August 2093. With a 11.2 day observation arc, the odds decreased to 1 in 7.1 million. However, the odds of an impact on 4 August 2104 increased to 1 in 45,000. With a 13.2 day observation arc, the 2104 impact was ruled out, but a 4 August 2101 impact became more probable, with the odds increasing to 1 in 36,000. The nominal distance from Earth on 4 August 2101 is . It was removed from the sentry risk table entirely on July 31 with a 15.6 day observation arc. (diameter ~390 meters) with a 5 day observation arc showed a 1 in 11,000 chance of impact on 1 December 2028 and a nominal distance from Earth on 1 December 2028 of with an uncertainty region of ±304 million km. The 8 day observation arc showed a 1 in 26,000 chance of impact on 1 December 2028 and a nominal distance from Earth on 1 December 2028 of . On 13 December 2020 precovery observations from 2013, 2016, and mid-2020 extended the observation arc from 8 days to 7.8 years allowing the asteroid to be removed from the Sentry Risk Table. 2021 (diameter ~200 meters) with a 7.6 day observation arc showed a 1 in 6,700 chance of impact on 3 May 2034. With a 7 day arc, the nominal distance from Earth on 3 May 2034 was with an uncertainty region of ±20 million km. It was removed from the ESA and Sentry Risk Table on 12 October 2021 when precovery images from 2010, 2015 and 2018 were located in the DECam and Pan-STARRS archives. (diameter ~300 meters) with a 18.9 day observation arc showed a 1 in 56,000 chance of impact on 27 March 2081. The nominal distance