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2012 KP24

Chelyabinsk-sized near-Earth asteroid

Field	Value
minorplanet	yes
background	#FFC2E0
name
discovery_ref
discoverer	MLS
discovery_site	Mount Lemmon Obs.
discovered	23 May 2012
mpc_name
mp_category	ApolloNEO
orbit_ref
epoch	2022-Aug-09 (JD 2459800.5)
uncertainty	6
observation_arc	5 days
aphelion	(Q)
perihelion	(q)
time_periastron	~2023-Jul-04
semimajor	(a)
eccentricity	(e)
period
inclination	(i)
asc_node	(Ω)
mean_motion	/day
mean_anomaly	(M)
arg_peri	(ω)
moid	0.0002 AU
mean_diameter
mass	(est.)
rotation
magnitude	13.3 (2012 passage)
21.6? (2023 passage)
abs_magnitude	26.4

21.6? (2023 passage)

**** (also written 2012 KP24) is a Chelyabinsk-sized near-Earth asteroid with an observation arc of only 5 days and has a modestly determined orbit for an object of its size. Around 31 May 2023 ±3 days it will pass between 0.19 - from Earth. Nominally the asteroid is expected to pass 0.026 AU from Earth and brighten to around apparent magnitude 21.6.

It is a fast rotator that rotates in 0.04 hour. The asteroid is estimated to be 17 m in diameter. It will next come to perihelion (closest approach to the Sun) around 4 July 2023. It has an orbital uncertainty parameter of 6.

2012

It was discovered on 23 May 2012 by the Mount Lemmon Survey at an apparent magnitude of 20.8 using a 1.5 m reflecting telescope. On 28 May 2012 at 15:20 UT, the asteroid passed 0.00038 AU from the center-point of Earth. It then reached perihelion on 2 July 2012. It was removed from the Sentry Risk Table on 8 August 2013 after Sentry updated to planetary ephemeris (DE431).

2032

Newer versions of Sentry returned the object to the risk table. Virtual clones of the asteroid that fit the uncertainty region in the known trajectory show a 1 in 2.1 million chance that the asteroid could impact Earth on 2032 May 28. With a Palermo Technical Scale of −6.30, the odds of impact by in 2032 are about 2 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.

References

|archive-url=https://archive.today/20130308175939/http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2012KP24;cad=1%23cad |archive-date=2013-03-08 |url-status=live

|url-status=live

|archive-url=https://web.archive.org/web/20020321092747/http://neo.jpl.nasa.gov/risk/doc/palermo.html |url-status=dead |archive-date=21 March 2002

|archive-url=https://web.archive.org/web/20131018003546/http://neo.jpl.nasa.gov/risk/removed.html |url-status=dead |archive-date=2013-10-18

References

Math: 10^6.30 = 1,995,262

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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