Английская Википедия:2006 JY26
Шаблон:Use dmy dates Шаблон:Infobox planet
Шаблон:Mp is a near-Earth object that is also horseshoe companion to the Earth like 3753 Cruithne.[1]
Discovery, orbit and physical properties
Шаблон:Mp was discovered by E. J. Christensen on 6 May 2006, observing for the Catalina Sky Survey.[2][3] Its orbit is characterized by low eccentricity (0.083), low inclination (1.44º) and a semi-major axis of 1.01 AU.[3] Upon discovery, it was classified as an Apollo asteroid but also an Earth crosser by the Minor Planet Center. The orbit is based on 76 observations spanning a data-arc of 4 days.[4] Шаблон:Mp has an absolute magnitude (H) of 28.4 which gives a characteristic diameter of about 9 meters.[4]
Impact risk
| Date | Impact probability (1 in) |
JPL Horizons nominal geocentric distance (AU) |
uncertainty region (3-sigma) |
|---|---|---|---|
| 2073-05-03 09:36 | 330 thousand | Шаблон:Convert | ±2.4 million km |
| 2074-05-03 00:43 | 210 | Шаблон:Convert | ±2.8 million km[6] |
| 2075-05-01 10:34 | 2.4 million | Шаблон:Convert | ±23 million km |
It is listed on the Sentry Risk Table with a 1 in 210 chance of impacting Earth on 3 May 2074.[5][7] The nominal best-fit orbit shows that Шаблон:Mp will be Шаблон:Convert from Earth on 3 May 2074.[4] An impact from this object would be less severe than the Chelyabinsk meteor.
Horseshoe companion to the Earth and orbital evolution
Recent calculations indicate that it follows a horseshoe orbit with respect to the Earth.[1] It had a close encounter with the Earth on 10 May 2006, at Шаблон:Convert.[4] Its orbital evolution is very chaotic and its orbit is difficult to predict beyond a few hundred years.[1] Its orbit matches the expected properties of that of an object in the Arjuna-class.
Origin
It may have been originated within the Venus–Earth–Mars region or in the main asteroid belt like other near-Earth objects, then transition to Amor-class asteroid before entering Earth's co-orbital region.[1]
See also
Notes
- Шаблон:Note label This is assuming an albedo of 0.20–0.04.
References
- Further reading
- A resonant family of dynamically cold small bodies in the near-Earth asteroid belt de la Fuente Marcos, C., de la Fuente Marcos, R. 2013, Monthly Notices of the Royal Astronomical Society: Letters, Vol. 434, Issue 1, pp. L1–L5.
External links
- Шаблон:Mp data at MPC
- Шаблон:Mp Earth Impact Risk Summary
- MPEC 2006-J38 : 2006 JY26 (Discovery MPEC)
- Шаблон:NeoDys
- Шаблон:ESA-SSA
- Шаблон:JPL small body
Шаблон:Small Solar System bodies Шаблон:Authority control
- ↑ 1,0 1,1 1,2 1,3 Шаблон:Cite journal
- ↑ Discovery MPEC
- ↑ 3,0 3,1 MPC data on 2006 JY26
- ↑ 4,0 4,1 4,2 4,3 JPL's Solar System Dynamics data on 2006 JY26
- ↑ 5,0 5,1 Ошибка цитирования Неверный тег
<ref>; для сносокsentryне указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокHorizons2074не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокNEODyS-impactне указан текст
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