Английская Википедия:(21601) 1998 XO89

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Шаблон:Use dmy dates Шаблон:Infobox planet

Шаблон:Mp, provisional designation: Шаблон:Mp, is a Jupiter trojan from the Greek camp, approximately Шаблон:Convert in diameter. It was discovered on 15 December 1998, by astronomers with the Lincoln Near-Earth Asteroid Research at the Lincoln Lab's ETS near Socorro, New Mexico.[1] The dark Jovian asteroid has a rotation period of 12.7 hours and belongs to the 80 largest Jupiter trojans.[2] It has not been named since its numbering in February 2001.[3]

Orbit and classification

Шаблон:Mp is a dark Jovian asteroid orbiting in the leading Greek camp at Jupiter's Шаблон:L4 Lagrangian point, 60° ahead of the Gas Giant's orbit in a 1:1 resonance Шаблон:Cross reference.[4] It is also a non-family asteroid in the Jovian background population.[5]

It orbits the Sun at a distance of 5.0–5.4 AU once every 11 years and 11 months (4,356 days; semi-major axis of 5.22 AU). Its orbit has an eccentricity of 0.04 and an inclination of 19° with respect to the ecliptic.[6] The body's observation arc begins with a precovery published by the Digitized Sky Survey and taken at the Siding Spring Observatory in March 1991, more than 7 years prior to its official discovery observation at Socorro.[1]

Numbering and naming

This minor planet was numbered on 8 February 2001 (Шаблон:Small).[3] Шаблон:As of, it has not been named.[1]

Physical characteristics

Шаблон:Mp is an assumed C-type asteroid. Its V–I color index of 0.97 is typical for that of D-type asteroids, the dominant spectral type among the Jupiter trojans.[2]

Rotation period

In April 2013, a rotational lightcurve of Шаблон:Mp was obtained from photometric observations by Robert Stephens at the Center for Solar System Studies (CS3) in California. Lightcurve analysis gave a rotation period of Шаблон:Val hours and a brightness variation of 0.30 magnitude (Шаблон:Small).[7] Observations by his college Brian Warner at CS3 in July 2017, gave a similar period of 12.530 hours with an amplitude of 0.25 magnitude (Шаблон:Small).Шаблон:EfnШаблон:Efn

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Шаблон:Mp measures 54.91 and 56.08 kilometers in diameter and its surface has an albedo of 0.064 and 0.100, respectively.[8][9] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 55.67 kilometers based on an absolute magnitude of 10.0.[2]

Шаблон:Largest Jupiter trojans

Notes

Шаблон:Notelist

References

Шаблон:Reflist

External links

Шаблон:Minor planets navigator Шаблон:Small Solar System bodies

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  1. ↑ 1,0 1,1 1,2 Ошибка цитирования Неверный тег <ref>; для сносок MPC-object не указан текст
  2. ↑ 2,0 2,1 2,2 Ошибка цитирования Неверный тег <ref>; для сносок lcdb не указан текст
  3. ↑ 3,0 3,1 Ошибка цитирования Неверный тег <ref>; для сносок MPC-Circulars-Archive не указан текст
  4. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPC-Jupiter-Trojans не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок AstDys-object не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  7. ↑ Ошибка цитирования Неверный тег <ref>; для сносок French-2013 не указан текст
  8. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Grav-2012 не указан текст
  9. ↑ Ошибка цитирования Неверный тег <ref>; для сносок AKARI не указан текст
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