| Minorplanet: | yes |
| Background: |
|
| Discovery Ref: | [1] |
| Discoverer: | Catalina Sky Survey |
| Discovered: | May 7, 2009 |
| Discovery Site: | Summerhaven, Arizona, USA |
| Mpc Name: | 2009 KK |
| Mp Category: | NEO |
| Alt Names: | MPO 218092 |
| Orbit Ref: | [2] |
| Epoch: | 4 September 2017 (JD 2458000.5) |
| Uncertainty: | 1 |
| Observation Arc: | 953 d |
| Aphelion: | 2.18591abbr=onNaNabbr=on |
| Perihelion: | 0.81835AU |
| Semimajor: | 1.50213AU |
| Eccentricity: | 0.45521 |
| Period: | 1.84 yr (672.452 d) 1.84 yr |
| Inclination: | 18.2159° |
| Asc Node: | 68.1587° |
| Mean Anomaly: | 143.59° |
| Arg Peri: | 247.32° |
| Moid: | 9.55542E-05AU |
| Mercury Moid: | 0.3949AU |
| Abs Magnitude: | 20.5 |
| Mean Motion: | /day |
| Jupiter Moid: | 3.23017AU |
(614433) 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. There was a 1 in 10000 chance of an impact on 29 May 2022. 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. On 17 June 2009, JPL removed 2009 KK from the list of potential Earth impactors.[3] It is now known that on 4 May 2022 the asteroid will be 0.475abbr=onNaNabbr=on from Earth.[2]
2009 KK may pass as close as 0.006abbr=onNaNabbr=on from Earth on 2194-Jun-02.[2] But the nominal solution shows the asteroid passing 0.038abbr=onNaNabbr=on from Earth.[2]