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Discovery
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|---|---|
| Discovered by | Brian A. Skiff / LONEOS |
| Discovery date | May 11, 2004 |
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Designations
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| Alternate name(s) | none |
| Minor planet category |
Aten, Apohele, Mercury-crosser, Venus-crosser |
| Epoch October 22, 2004 (JD 2453300.5) | |
| Aphelion | 145.491 Gm (0.973 AU) |
| Perihelion | 44.480 Gm (0.297 AU) |
| Semi-major axis | 94.985 Gm (0.635 AU) |
| Eccentricity | 0.532 |
| Orbital period | 184.798 d (0.51 a) |
| Average orbital speed | 34.58 km/s |
| Mean anomaly | 164.532° |
| Inclination | 18.962° |
| Longitude of ascending node | 37.076° |
| Argument of perihelion | 352.935° |
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Physical characteristics
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| Dimensions | 0.5-1.2 km |
| Mass | 1.3-18.0×1011 kg |
| Mean density | 2.0? g/cm³ |
| Equatorial surface gravity | 0.0001-0.0003 m/s² |
| Escape velocity | 0.0003-0.0006 km/s |
| Rotation period | ? d |
| Albedo | 0.10 |
| Temperature | ~349 K |
| Spectral type | ? |
| Absolute magnitude (H) | 19.00 |
2004 JG6 (also written 2004 JG6) is an unusual asteroid.
It is the second known Apohele asteroid (the first being 163693 Atira), which means its entire orbit lies within that of the Earth. 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.
It was discovered by Brian A. Skiff of the LONEOS project.
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