2014 LY21 (original) (raw)

2014 LY21 is a near-Earth asteroid of the Aten group, approximately 4–8 meters (13–26 feet) in diameter. On 3 June 2014 around 17:38 UT (± 3 hours), it is crudely estimated to have passed about 0.00013 AU (19,000 km) from Earth. The asteroid was discovered on 2 June 2014 by the Mount Lemmon Survey at an apparent magnitude of 21 using a 1.5-meter (59 in) reflecting telescope.