| Discovery[1][2] | |
|---|---|
| Discovered by | LONEOS |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 11 May 2004 |
| Designations | |
| (434326) 2004 JG6 | |
| 2004 JG6 | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 1 | |
| Observation arc | 11.05 yr (4,035 days) |
| Aphelion | 0.9726 AU |
| Perihelion | 0.2978 AU |
| 0.6352 AU | |
| Eccentricity | 0.5312 |
| 0.51 yr (185 days) | |
| 315.54° | |
| 1° 56m 48.48s / day | |
| Inclination | 18.945° |
| 37.032° | |
| 352.99° | |
| Earth MOID | 0.0381 AU (14.8 LD) |
| Physical characteristics | |
| 0.6–1.4 km[3] | |
| 18.4[1] | |
(434326) 2004 JG6, provisional designation 2004 JG6, is an eccentric, sub-kilometer sized asteroid, classified as near-Earth object and potentially hazardous asteroid of the Atira group. It is one of the closest orbiting objects to the Sun.[3][4] While its perihelion lies within the orbit of Mercury its orbital trajectory is highly elliptical, causing its aphelion to cross the orbit of Venus. Therefore, it does not fit the criteria for a vulcanoid or ꞋAylóꞌchaxnim asteroid, which would require it have a wholly intra-Mercurian and intra-Venusian orbit respectively.
Only the second Atira asteroid to be confirmed, 2004 JG6 was at the time of its discovery the asteroid with the smallest known semi-major axis, however it has since been eclipsed in this regard by several other asteroids.
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