2010 AL30
Near-Earth asteroid
From Wikipedia, the free encyclopedia
2010 AL30 is a near-Earth asteroid that was discovered on 10 January 2010 at Grove Creek Observatory, Australia.[1][3]
| |
| Discovery | |
|---|---|
| Discovery date | January 10, 2010 |
| Designations | |
| none | |
| Apollo NEO[1] | |
| Orbital characteristics[1] | |
| Epoch 21 November 2025 (JD 2461000.5) | |
| Uncertainty parameter 3 | |
| Aphelion | 1.3675 AU (204.58 Gm) |
| Perihelion | 0.72418 AU (108.336 Gm) |
| 1.0458 AU (156.45 Gm) | |
| Eccentricity | 0.30755 |
| 1.07 yr (390.65 d) | |
Average orbital speed | 28.5 |
| 232.456° | |
| 0° 55m 17.508s /day | |
| Inclination | 3.8313° |
| 112.338° | |
| 97.822° | |
| Earth MOID | 0.000943817 AU (141,193.0 km) |
| Jupiter MOID | 3.59553 AU (537.884 Gm) |
| Physical characteristics | |
| Dimensions | ~30 meters (elongated)[2] |
| 0.14660 h (0.006108 d) | |
| ? | |
| 27.2 | |
Italian scientists Ernesto Guido and Giovanni Sostero told RIA Novosti that it had an orbital period of almost exactly one year and might be a spent rocket booster.[4] However, it was determined that it is a near-Earth asteroid.[5] On January 13, 2010 at 1246 UT it passed Earth at 0.0008624 AU (129,010 km; 80,170 mi),[1] about 1/3 of the distance from the Earth to the Moon (or 0.33 LD).
Based an estimated diameter of 10–15 m (33–49 ft), if 2010 AL30 had entered the Earth's atmosphere, it would have created a meteor air burst equivalent to between 50 kT and 100 kT (kilotons of TNT). The Nagasaki "Fat Man" atom bomb had a yield between 13–18 kT.[6]
It has an uncertainty parameter of 3 and has been observed by radar.[1] Radar observations show the asteroid is elongated and is about 30 meters in diameter.[2] It may be a contact binary.
