Английская Википедия:2011 SP189

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Шаблон:Mp is a small asteroid and Mars trojan orbiting near the Шаблон:L5 of Mars (60 degrees behind Mars on its orbit).

Discovery, orbit and physical properties

Шаблон:Mp was first observed on 29 September 2011 by the Mount Lemmon Survey. Its orbit is characterized by low eccentricity (0.040), moderate inclination (19.9°) and a semi-major axis of 1.52 AU. Upon discovery, it was classified as Mars-crosser by the Minor Planet Center. Its orbit is well determined as it is currently (January 2021) based on 45 observations with a data-arc span of 2390 days. Шаблон:Mp has an absolute magnitude of 20.9 which gives a characteristic diameter of 300 m.

Mars trojan and orbital evolution

Recent calculations indicate that it is a stable Шаблон:L5 Mars trojan with a libration period of 1300 yr and an amplitude of 20°. These values are similar to those of 5261 Eureka and related objects and it may be a member of the so-called Eureka family.

Mars trojan

Шаблон:L4 (leading):

• Шаблон:Mpl †

Шаблон:L5 (trailing):

• 5261 Eureka (1990 MB) †
• Шаблон:Mpl †
• Шаблон:Mpl †
• Шаблон:Mpl
• Шаблон:Mpl
• Шаблон:Mpl
• Шаблон:Mpl
• Шаблон:Mpl
• Шаблон:Mpl
• Шаблон:Mpl
• Шаблон:Mpl
• Шаблон:Mpl
• Шаблон:Mpl

See also

• Шаблон:Mpl

References

Further reading

• Three new stable L5 Mars Trojans de la Fuente Marcos, C., de la Fuente Marcos, R. 2013, Monthly Notices of the Royal Astronomical Society: Letters, Vol. 432, Issue 1, pp. 31–35.
• Orbital clustering of Martian Trojans: An asteroid family in the inner solar system? Christou, A. A. 2013, Icarus, Vol. 224, Issue 1, pp. 144–153.

External links

• Шаблон:Mp data at MPC.
• Шаблон:AstDys
• Шаблон:ESA-SSA
• Шаблон:JPL small body