It was removed from the Sentry Risk Table on 2 December 2016, when prediscovery images by Pan-STARRS from October 2016 and precovery images taken from Mauna Kea in July 2003 where located and included in the impact calculations. was listed on the JPL Near Earth Object Risk List with a Torino Scale of Level 1 on 25 December 2016, while the NEODyS Risk List has it at a lower impact probability, sufficient to classify it as Torino Scale Level 0. With a 15-day observation arc, it was listed with an estimated 1 in 105,000 chance of impacting Earth on 1 November 2110. The asteroid is estimated to have a diameter of , and would have impacted Earth at a relative speed of . It was removed from the Sentry Risk Table on 7 January 2017 with a 29-day observation arc. 2017 was listed on the JPL Near Earth Object Risk List and NEODyS Risk List with a Torino Scale of Level 1 on 19 January 2017. With a 14-day observation arc, it had an estimated 1 in 59,000 chance of impacting Earth on 1 August 2024. The asteroid is estimated to have a diameter of , and would impact Earth at a relative speed of . With a 16-day observation arc, the odds of impact were reduced to 1 in a million. It was removed from the Sentry Risk Table on 23 January 2017 with a 19-day observation arc. was listed on the JPL Near Earth Object Risk List and NEODyS Risk List with a Torino Scale of Level 1 on 3 February 2017. With a 5-day observation arc, it had an estimated 1 in 1610 chance of impacting Earth on 3 August 2029. With a 6-day observation arc, the odds were 1 in 1270. With a 7-day observation arc, the odds were 1 in 909. With a 10-day observation arc, the odds were 1 in 826. The asteroid is estimated to have a diameter of , and would impact Earth at a relative speed of . The value decreased to 0 with further observations on February 11, with a cumulative impact chance of 1 in 4258. was listed on the NEODyS Risk List with a Torino Scale of Level 1 on 8 February 2017. It is estimated be 900 meters in diameter with a 1 in 500000 chance of impact on 4 June 2095. Such an impact could create