2004 VD17 was discovered on 7 November 2004, by the NASA-funded LINEAR asteroid survey. The object is estimated by NASA's Near Earth Object Program Office to be 580 meters in diameter with an approximate mass of 2.6×1011kg.[5]
Being approximately 580 meters in diameter, if 2004 VD17 were to impact land, it would create an impact crater about 10 kilometres wide and generate an earthquake of magnitude 7.4.[6]
From February to May 2006, 2004 VD17 was listed with a Torino Scale impact risk value of 2, only the second asteroid in risk-monitoring history to be rated above value 1.[7] With an observation arc of 1511 days, it was estimated to have a 1 in 1320 chance of impacting on 4 May 2102.[3] The Torino rating was lowered to 1 after additional observations on 20 May 2006, and finally dropped to 0 on 17 October 2006.
As of 4 January 2008, the Sentry Risk Table assigned 2004 VD17 a Torino value of 0 and an impact probability of 1 in 58.8 million for 4 May 2102.[5] This value was far below the background impact rate of objects this size. Further observations allowed it to be removed from the Sentry Risk Table on 14 February 2008.[8]
It will pass 0.021 AU (3,100,000 km; 2,000,000 mi) from the Earth on 1 May 2032, allowing a refinement to the orbit.[1]
^"Date/Time Removed" (listed as 144898). NASA/JPL Near-Earth Object Program Office. Archived from the original on 1 March 2008. Retrieved 13 December 2021.
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