Discovery date 23 May 2012 Minor planet category Apollo NEO Asteroid group Apollo asteroid Discoverer Mount Lemmon Survey | MPC designation 2012 KP24 Discovered 23 May 2012 Apparent magnitude 13.3 | |
 | ||
Discovered by Mount Lemmon Survey (G96) Aphelion 2.0520 AU (306.97 Gm) (Q) Perihelion 0.94492 AU (141.358 Gm) (q) Similar Kepler‑80, Kepler‑56, Kappa Andromedae b, 2012 TC4, Gliese 163 c | ||
2012 kp24 asteroid 26m close pass on may 29 2012
2012 KP24 (also written 2012 KP24) is a near-Earth asteroid with an observation arc of only 5 days and has a modestly determined orbit for an object of its size.
Contents
Asteroid 2012 kp24
Overview
It was discovered on 23 May 2012 by the Mount Lemmon Survey at an apparent magnitude of 20.8 using a 1.5-meter (59 in) reflecting telescope. On 28 May 2012 at 15:20 UT, the asteroid passed 0.00038 AU (57,000 km; 35,000 mi) from the center-point of Earth. The asteroid is estimated to be 17 meters (56 ft) in diameter. It was removed from the Sentry Risk Table on 8 August 2013 after Sentry updated to planetary ephemeris (DE431). It has an uncertainty parameter of 6. While listed on the Sentry Risk Table, virtual clones of the asteroid that fit the uncertainty region in the known trajectory showed a 1 in 9,091,000 chance that the asteroid could impact Earth on 2032 May 28. With a Palermo Technical Scale of −7.22, the odds of impact by 2012 KP24 in 2032 were about 16 million times less than the background hazard level of Earth impacts which is defined as the average risk posed by objects of the same size or larger over the years until the date of the potential impact.