 | |
| Discovery | |
|---|---|
| Discovery date | January 10, 2010 |
| Designations | |
| none | |
| ApolloNEO[1] | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 2 | |
| Aphelion | 1.3688 AU (204.77 Gm) |
| Perihelion | 0.72437 AU (108.364 Gm) |
| 1.0466 AU (156.57 Gm) | |
| Eccentricity | 0.30787 |
| 1.07yr (391.07d) | |
Averageorbital speed | 28.5 |
| 156.409° | |
| 0° 55m 13.944s /day | |
| Inclination | 3.8300° |
| 112.376° | |
| 97.711° | |
| Earth MOID | 0.000981553 AU (146,838.2 km) |
| Jupiter MOID | 3.59473 AU (537.764 Gm) |
| Physical characteristics | |
| Dimensions | ~30 meters (elongated)[2] |
| 0.14660 h (0.006108 d) | |
| ? | |
| 27.2 | |
2010 AL30 is anear-Earth asteroid that was discovered on 10 January 2010 atGrove Creek Observatory, Australia.[1][3]
Italian scientists Ernesto Guido and Giovanni Sostero toldRIA 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 0.33LD).
Based an estimated diameter of 10–15 m (33–49 ft), if 2010 AL30 had entered the Earth's atmosphere, it would have created ameteor 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 anuncertainty parameter of 2 and has been observed byradar.[1] Radar observations show the asteroid is elongated and is about 30 meters in diameter.[2] It may be acontact binary.
