astro.wikisort.org - Asteroid
2003 YN107 is a tiny asteroid, classified as a near-Earth object of the Aten group moving in a 1:1 mean-motion resonance with Earth. Because of that, it is in a co-orbital configuration relative to Earth.[2][3][4]
| Discovery | |
|---|---|
| Discovered by | LINEAR |
| Discovery date | 20 December 2003 |
| Designations | |
Minor planet category |
|
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 467 days (1.28 yr) |
| Aphelion | 1.00244 AU (149.963 Gm) |
| Perihelion | 0.974906 AU (145.8439 Gm) |
Semi-major axis | 0.988674 AU (147.9035 Gm) |
| Eccentricity | 0.0139259 |
Orbital period (sidereal) | 0.98 yr (359.1 d) |
Average orbital speed | 29.82 km/s |
Mean anomaly | 176.9658° |
Mean motion | 1.00259°/day |
| Inclination | 4.32078° |
Longitude of ascending node | 264.41926° |
Argument of perihelion | 87.50070° |
| Earth MOID | 0.0045919 AU (686,940 km) |
| Physical characteristics | |
Mean diameter | 10–30 m |
Absolute magnitude (H) | 26.5[1] |
Discovery, orbit and physical properties
2003 YN107 was discovered by the Lincoln Near Earth Asteroid Research (LINEAR) system in orbit around the Sun on 20 December 2003. Its diameter is approximately 10 to 30 metres. The object is on NASA's Earth Close Approach list, and is estimated to miss Earth by 0.01 AU. It revolves around the Sun on an Earth-like, almost circular, orbit. Its orbital period of 363.846 days also is very close to the sidereal year.
Co-orbital with Earth and orbital evolution
From approximately 1997 to 2006, the asteroid remained within 0.1 AU (15,000,000 km; 9,300,000 mi) of Earth and it appeared to slowly orbit Earth.[2] However, 2003 YN107 is no second moon, as it is not bound to Earth. It is the first discovered member of a postulated group of coorbital objects, or quasi-satellites, which show these path characteristics.[2][3] Other members of this group include 10563 Izhdubar, 54509 YORP, (66063) 1998 RO1, (85770) 1998 UP1, and (85990) 1999 JV6. Before 1996, the asteroid had been on a so-called horseshoe orbit around the Sun, along the Earth's orbit. After 2006, it had regained such an orbit. This makes it very similar to 2002 AA29, which will become a quasi-satellite of Earth in approximately 600 years.[2][3][4]
See also
- Arjuna asteroid
- Natural satellite
- Quasi-satellite
- 3753 Cruithne
- 6Q0B44E
- 2001 GO2
- 2002 AA29
- 2006 JY26
- 2006 RH120
- 2009 SH2
- 2010 SO16
- 2012 FC71
- 2013 BS45
- 2016 HO3
References
- "JPL Small-Body Database Browser: (2003 YN107)". Jet Propulsion Laboratory. Retrieved 30 March 2016.
- Connors, M.; Veillet, C.; Brasser, R.; Wiegert, P.; Chodas, P.; Mikkola, S.; Innanen, K. (August 2004). "Discovery of Earth's quasi-satellite". Meteoritics & Planetary Science. 39 (8): 1251–1255. Bibcode:2004M&PS...39.1251C. doi:10.1111/j.1945-5100.2004.tb00944.x.
- Brasser, R.; Innanen, K. A.; Connors, M.; Veillet, C.; Wiegert, P.; Mikkola, S.; Chodas, P. W. (September 2004). "Transient co-orbital asteroids". Icarus. 171 (1): 102–109. Bibcode:2004Icar..171..102B. doi:10.1016/j.icarus.2004.04.019.
- de la Fuente Marcos, C.; de la Fuente Marcos, R. (July 2013). "A resonant family of dynamically cold small bodies in the near-Earth asteroid belt". Monthly Notices of the Royal Astronomical Society: Letters. 434 (1): L1–L5. arXiv:1305.2825. Bibcode:2013MNRAS.434L...1D. doi:10.1093/mnrasl/slt062.
External links
- MPEC 2003-Y76 : 2003 YN107 (Discovery MPEC)
- NASA's Near-Earth Object close approach tables
- Corkscrew Asteroid, Tony Phillips, Science@NASA, 9 June 2006.
- Horseshoe asteroids and quasi-satellites in Earth-like orbits
- 2003 YN107 at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
- 2003 YN107 at ESA–space situational awareness
- 2003 YN107 at the JPL Small-Body Database
На других языках
[de] 2003 YN107
Vorlage:Infobox Asteroid/Wartung/SSD_ID keine Zahl- [en] 2003 YN107
[es] 2003 YN107
El asteroide 2003 YN107 es uno de los denominados asteroides coorbitantes de la Tierra o cuasisatélites, y el primero que se ha conocido. Estos son asteroides que al acercarse a la Tierra permanecen capturados por la gravedad terrestre, durante algunos años, y luego se alejan nuevamente.[ru] 2003 YN107
2003 YN107 — небольшой околоземный астероид из группы атонов, который движется в орбитальном резонансе с Землёй 1:1. Из-за особенностей его движения вокруг Солнца этот астероид также называют квазиспутником Земли[1][2][3].Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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