(386454) 2008 XM

2008 XM
Discovery^[1]
Discovered by	LINEAR
Discovery date	2 December 2008
Designations
Minor planet category	Apollo, NEO, PHA^[1] Mercury Crosser, Venus Crosser, Apollo Asteroid, Mars Crosser
Orbital characteristics^[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	1884 days (5.16 yr)
Aphelion	2.333438322406708 AU (349.07740444182 Gm)
Perihelion	0.1111469155598130 AU (16.627341902620 Gm)
Semi-major axis	1.222292618983261 AU (182.85237317222 Gm)
Eccentricity	0.9090668520503150
Orbital period	1.35 yr (493.58 d)
Mean anomaly	127.0285751878720°
Mean motion	0° 43^m 45.692^s / day
Inclination	5.446202450074366°
Longitude of ascending node	240.6325642664160°
Argument of perihelion	27.36503186744770°
Earth MOID	0.00476285 AU (712,512 km)
Jupiter MOID	2.78486 AU (416.609 Gm)
Jupiter Tisserand parameter	4.659
Physical characteristics
Absolute magnitude (H)	20.0

(386454) 2008 XM is a potentially hazardous asteroid with a highly eccentric orbit that crosses the orbits of Mercury, Venus, Earth, and Mars. It has the third-smallest perihelion of any numbered asteroid behind (137924) 2000 BD₁₉ and (374158) 2004 UL.

References

1 2 3 "JPL Small-Body Database Browser: 386454 (2005 HC4)". Jet Propulsion Laboratory. Retrieved 12 April 2016. 2014-01-29 last obs (arc=1884 days)

External links

(386454) 2008 XM at the JPL Small-Body Database

Discovery · Orbit diagram · Orbital elements · Physical parameters

Small Solar System bodies

Minor planets

Designation Groups Moons Meanings of names Pronunciation of names

Asteroids	Aten asteroid Families Jupiter Trojans Main-belt Near-Earth Spectral types

Distant minor planets	Centaurs Damocloids Neptune trojans Trans-Neptunian objects Detached Kuiper belt Oort cloud Scattered disc

Comets

Meteoroids

Lists / categories

Asteroid groups and families
Asteroid moons
Binary asteroids
Minor planets

Planetary defense

Main topics	Asteroid Bolide Earth-grazing fireball Impact event List of meteor air bursts Meteor procession Meteor shower Meteorite Meteoroid Near-Earth object Potentially hazardous object

Defense	Asteroid impact avoidance Asteroid close approaches Earth-crossing minor planets Gravity tractor Ion Beam Shepherd Damage scales Palermo scale Torino scale

Space probes	AIDA Asteroid Redirect Mission Dawn Deep Impact Halley Armada Hayabusa Hayabusa 2 PROCYON NEAR Shoemaker New Horizons OSIRIS-REx Rosetta Philae Stardust

NEO tracking	ATLAS Catalina Sky Survey LINEAR LONEOS NEAT NEOSSat NEOCam NEODyS OGS Telescope Orbit@home Pan-STARRS SCAP Sentinel Space Telescope Sentry Spacewatch WISE

Organizations	B612 Foundation Japan Spaceguard Association Meteoritical Society NEOShield Spaceguard The Spaceguard Foundation Space Situational Awareness Programme Planetary Defense Coordination Office

Potential threats	1950 DA 1994 WR₁₂ 101955 Bennu 2002 MN (410777) 2009 FD 2010 RF₁₂ 99942 Apophis

Films/video	(1916) The End of the World (1951) When Worlds Collide (1962) Gorath (1968) The Green Slime (1968) The Paradise Syndrome (1978) A Fire in the Sky (1979) Meteor (1995) NOVA: Doomsday Asteroid (1997) Asteroid (1998) Deep Impact (1998) Armageddon (1999) Judgment Day (2004) Post Impact (2006) Deadly Skies (2007) Super Comet: After the Impact (2009) Impact (2009) NOVA: Last Extinction (2010) Meteor Storm (2010) HORIZON: Asteroids–The Good, the Bad and the Ugly (2011) Melancholia (2013) NOVA: Meteor Strike (2013) NOVA: Asteroid: Doomsday or Payday? (2015) Impact Earth

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(386454) 2008 XM

See also

References

External links