(53319) 1999 JM8

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Template:Downsize}} Template:Minor Planet

| discoverer= LINEAR
| discovery_date=May 13, 1999
| designations=1990 HD1 
| category=near Earth, Mars crosser
| epoch=December 1, 2005 (JD 2453705.5)
| semimajor=404.98 Gm (2.71 AU)
| perihelion=142.03 Gm (0.95 AU)
| aphelion=667.93 Gm (4.46 AU)
| eccentricity=.65
| period=1626.91 d (4.45 a)
| inclination=13.83°
| asc_node=133.90°
| arg_peri=166.25°
| mean_anomaly=151.84°
| speed=16.01 km/s
| dimensions=3.5 km
| mass= 
| density=
| gravity=
| escape_velocity=
| rotation=136 h
| spectral_class=X
| abs_mag=15.1
| albedo= 

| temperature=~ K}} Template:Mp (also written (53319) 1999 JM8) is a near-Earth asteroid and Mars-crosser asteroid discovered by LINEAR. Radar imaging by Goldstone and Arecibo has revealed the asteroid to be 3.5 km in diameter. Like the asteroid 4179 Toutatis, its rotation speed is unusually slow and possibly chaotic. Its shape is bizarre, and is vaguely reminiscent of a roast chicken.

It passed closer than 30 Gm to the Earth five times in the last century (5 Gm in 1990), but its closest approach in the 21st century will be at 38.3 Gm, in 2075.

References

• Catchall Catalog of Minor Planets
• NeoDys
• JPL neo page, including orbit diagrams

Image:1999jm8.jpg

Template:MinorPlanets Navigator|(53320) 1999 JW8}}

The minor planetsedit

Vulcanoids | Near-Earth asteroids | Main belt | Jupiter Trojans | Centaurs | Damocloids | Comets | Trans-Neptunians (Kuiper belt · Scattered disc · Oort cloud)

For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system For a complete listing, see: List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names.

sk:(53319) 1999 JM8