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(419624) 2010 SO16
Asteroid
Asteroid
| Field | Value |
|---|---|
| minorplanet | yes |
| name | |
| background | #FFC2E0 |
| image | 2010SO16-orbit.png |
| caption | Orbit with inner solar system |
| discovery_ref | |
| discoverer | WISE |
| discovery_site | *Low Earth orbit* |
| discovered | 17 September 2010 |
| mpc_name | (419624) |
| alt_names | |
| named_after | |
| mp_category | ApolloNEOPHA |
| orbit_ref | |
| epoch | 4 September 2017 (JD 2458000.5) |
| uncertainty | 0 |
| observation_arc | 5.28 yr (1,928 days) |
| aphelion | 1.0785 AU |
| perihelion | 0.9272 AU |
| semimajor | 1.0028 AU |
| eccentricity | 0.0754 |
| period | 1.00 yr (367 days) |
| mean_anomaly | 173.30° |
| mean_motion | / day |
| inclination | 14.520° |
| asc_node | 40.397° |
| arg_peri | 108.99° |
| moid | 0.0299 AU (11.6 LD) |
| mean_diameter | km |
| albedo | |
| abs_magnitude | 20.5 |
**** is a sub-kilometer asteroid in a co-orbital configuration with Earth, classified as near-Earth object and potentially hazardous asteroid of the Apollo group. It was discovered by the Wide-field Infrared Survey Explorer space telescope (WISE) on 17 September 2010.
Description
The orbit was described by Apostolos Christou and David Asher at the Armagh Observatory in Northern Ireland. The object has an absolute magnitude of 20.5. Observations by the discovering WISE telescope give a diameter of 357 meters and an albedo of 0.084.
has a horseshoe orbit that allows it to stably share Earth's orbital neighborhood without colliding with it. It is one of a handful of known asteroids with an Earth-following orbit, a group that includes 3753 Cruithne, and the only known asteroid in an horseshoe orbit with Earth. It is, however, neither an Aten asteroid nor an Apollo asteroid because the semi-major axis of its orbit is neither less than nor greater than 1 AU, but oscillates between approximately 0.996 and 1.004 AU, with a period of about 350 years. In its ~350 yr horseshoe cycle, it never approaches Earth more closely than about 0.15 AU, alternately trailing and leading.
According to various simulations will remain in this orbit for at least 120,000 years and possibly for more than a million years, which is unusually stable compared to other similar objects. One reason for this stability is its low orbital eccentricity, .
A precovery of may have been located in a 2005 Spitzer Space Telescope image.
References
|doi-access = free
|display-authors = 6
|display-authors = 6
References
- [http://www.technologyreview.com/blog/arxiv/26608/Earth-Companion Asteroid Discovered in Horseshoe-Shaped Orbit], The Physics arXiv Blog, ''[[Technology Review]]'', 4/05/2011
This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.
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