- 2007 VK184
Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=2007 VK184
discoverer=Catalina Sky Survey
discovered=November 11 ,2007
alt_names=
mp_category=Apollo
orbit_ref = cite web |title =JPL Small-Body Database Browser: 2007 VK184 |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2007+VK184&orb=1 |accessdate=2008-02-05]
epoch=May 14 ,2008 (JD 2454600.5)
semimajor=1.726508477921687±0.00014468 AU
perihelion=0.7426802273959253±6.7313e-06 AU
aphelion=2.71033672844745±0.00022713 AU
eccentricity=0.5698369067437545±3.9672e-05
period=828.6125366901762±0.10416 d (2.27±0.0002852 a)
inclination=1.222310015202323±9.8849e-05°
asc_node=254.0587808820642±0.0010227°
arg_peri=73.0616457437701±0.0014356°
mean_anomaly=102.686674978651±0.013484°
avg_speed=15.63 km/s
dimensions=130 m
mass=3.3x109 kg
density=
surface_grav=
escape_velocity=
rotation=
spectral_type=
abs_magnitude=22.002
albedo=
single_temperature=2007 VK184 is an
asteroid which is listed on the Near Earth Object Risk List with a rating on theTorino Scale of Level 1. As of8 August 2008 , it is the only near-earth object to be listed above Level 0 for potential impacts within 100 years. VK184 was discovered onNovember 12th 2007 , by theCatalina Sky Survey .Fact|date=April 2008Further observations between
December 18th ,2007 andJanuary 4th ,2008 , suggested an increase in the impact probability to 1 in 2700 chance for an impact with Earth during June 2048. A few days later, the impact probability was reverted back to a 1 in 3030 chance.According to the Near Earth Object-list, 99 observations over 52 days suggests the asteroid has a probability of 1 in 2700 chance to hit the Earth during June 2048. Those figures translate into a 0.037% chance to hit (or 99.963% to miss). The asteroid is estimated to have a diameter of 130 meters, and travels through space with a speed of 15.63 km/s relative to the Earth.
Asteroids with listing above 1 on the Torino Scale are rare and are, according to NEO, often downgraded to Level 0 after the initial observations.
References
*
* http://neo.jpl.nasa.gov/risk/2007vk184.html
* http://cfa-www.harvard.edu/iau/lists/Dangerous.html
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