2009 KK

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2009 KK
Discovery[1]
Discovered by Catalina Sky Survey
Discovery site Summerhaven, Arizona, USA
Discovery date May 7, 2009
Designations
MPC designation 2009 KK
MPO 218092
Apollo Apollo
NEO
Orbital characteristics[2]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 1[1]
Observation arc 953[1] d
Aphelion 2.18591 AU (327.007 Gm)
Perihelion 0.81835 AU (122.423 Gm)
1.50213 AU (224.715 Gm)
Eccentricity 0.45521
1.84 yr (672.452 d)
1.84 yr
143.59°
0° 32m 6.756s /day
Inclination 18.2159°
68.1587°
247.32°
Earth MOID 0.0000955542 AU (14,294.70 km)[2]
Mercury MOID 0.3949 AU (59,080,000 km)[1]
Jupiter MOID 3.23017 AU (483.227 Gm)[2]
Physical characteristics
20.5[2]

2009 KK is an Apollo near-Earth asteroid which was listed for several weeks in May and June 2009 on the Sentry Risk Table with a Torino Scale rating of 1.[3] There was a 1 in 10000 chance of an impact on 29 May 2022.[3] On 22 May 2009, it was listed as one of two near-earth objects assessed above Level 0 for potential impacts within 100 years, the other being 2007 VK184. As of 10 June 2009 it was downgraded to Level 0 as the cumulative Earth-impact probability was assessed as 7.9e-06 or 1 in 127,000.[4] On 17 June 2009, JPL removed 2009 KK from the list of potential Earth impactors.[5] It is now known that on 4 May 2022 the asteroid will be 0.475 AU (71,100,000 km; 44,200,000 mi) from Earth.[2]

2194 passage[edit]

2009 KK may pass as close as 0.006 AU (900,000 km; 560,000 mi) from Earth on 2194-Jun-02.[2] But the nominal solution shows the asteroid passing 0.038 AU (5,700,000 km; 3,500,000 mi) from Earth.[2]

References[edit]

  1. ^ a b c d "2009 KK". Minor Planet Center. Retrieved 16 August 2017. 
  2. ^ a b c d e f g "(2009 KK)". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 3460260. Retrieved 16 August 2017. 
  3. ^ a b "2009 KK Impact Risk". Near Earth Object Program. NASA. Archived from the original on June 4, 2009. 
  4. ^ "WayBack Machine archive from 11 June 2009". Wayback Machine. 2009-06-11. Archived from the original on June 11, 2009. Retrieved 2009-05-22. 
  5. ^ "NEOs Removed from Impact Risks Tables". Near Earth Object Program. NASA. 2009-06-17. Archived from the original on 18 June 2009. Retrieved 2009-06-17. 

External links[edit]