(434326) 2004 JG6
| Discovery | |
|---|---|
| Discovered by | Brian A. Skiff / LONEOS |
| Discovery date | 11 May 2004 |
| Designations | |
| none | |
|
Aten, Apohele Mercury-crosser Venus-crosser | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 1 | |
| Observation arc | 4035 days (11.05 yr) |
| Aphelion | 0.97260 AU (145.499 Gm) |
| Perihelion | 0.29783 AU (44.555 Gm) |
| 0.63521 AU (95.026 Gm) | |
| Eccentricity | 0.53114 |
| 0.51 yr (184.9 d) | |
Average orbital speed | 34.58 km/s |
| 227.457° | |
| 1.9468°/day | |
| Inclination | 18.946° |
| 37.038° | |
| 352.980° | |
| Earth MOID | 0.0398511 AU (5.96164 Gm) |
| Jupiter MOID | 4.46699 AU (668.252 Gm) |
| Jupiter Tisserand parameter | 8.752 |
| Physical characteristics | |
| Dimensions | 0.5–1.1 km[2] |
| Mass | 1.3–18.0×1011 kg |
Mean density | 2.0? g/cm³ |
Equatorial surface gravity | 0.0001–0.0003 m/s² |
Equatorial escape velocity | 0.0003–0.0006 km/s |
| ? d | |
| 0.10? | |
| Temperature | ~349 K |
| ? | |
| 18.4 | |
|
| |
(434326) 2004 JG6 (also written 2004 JG6) is one of the closest orbiting objects to the Sun.
It is the second known Apohele asteroid (the first being 163693 Atira), which means its entire orbit lies within that of the Earth.[1] Its orbital period is less than that of Venus, making it one of the closest known objects to the Sun, after Mercury. 2004 JG6 has an eccentric orbit that crosses the orbits of both Mercury and Venus.[1]
It was discovered by Brian A. Skiff of the LONEOS project.
See also
References
External links
- Orbital simulation from JPL (Java)
- "LONEOS Discovers Asteroid with the Smallest Orbit" (Press release). Lowell Observatory. May 20, 2004.
- (434326) 2004 JG6 at the JPL Small-Body Database
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