Английская Википедия:(163348) 2002 NN4

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Шаблон:Infobox planet

Шаблон:Mp (prov. designation: Шаблон:Mp) is a dark, sub-kilometer near-Earth object and potentially hazardous asteroid of the Aten group that flew by Earth on 6 June 2020. The highly elongated X-type asteroid has a rotation period of 14.5 hours and measures approximately Шаблон:Convert in diameter.[1][2] It was discovered by LINEAR at the Lincoln Laboratory's Experimental Test Site in New Mexico on 9 July 2002.[3]

Orbit

Шаблон:Mp flew by Earth on 6 June 2020, passing Шаблон:Convert from Earth.[1] The asteroid had been recovered two days earlier on 4 June 2020.[3] By 11 June 2020, the asteroid had brightened to apparent magnitude 14.4, which is roughly the brightness of Pluto.

Being a member of the Aten asteroids, Шаблон:Mp orbits the Sun at a distance of 0.50–1.26 AU once every 10 months (300 days; semi-major axis of 0.88 AU). Its orbit has an eccentricity of 0.43 and an inclination of 5° with respect to the ecliptic.[1] It was first observed by the Near-Earth Asteroid Tracking on Palomar Observatory on 2 July 2002, or seven nights prior to its official discovery observation by LINEAR.[3] This asteroid has an Earth minimum orbit intersection distance of Шаблон:Convert, which corresponds to 2.7 lunar distances (LD).[1]

Physical characteristics

A spectroscopic survey of the small near-Earth asteroid population conducted by European astronomers determined that Шаблон:Mp is an X-type asteroid.[4][2] Because of the objects low albedo (see below), it would be considered a primitive P-type asteroid in the Tholen classification.

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Шаблон:Mp measures (Шаблон:Val) meters in diameter, and its surface has a dark albedo of (Шаблон:Val).[5] (The NEOWISE publication uses the designation G3348 for this asteroid.[6]) In 2016, astronomers using the European New Technology Telescope at La Silla Observatory found a diameter of 613 meters with an albedo of 0.047.[4]Шаблон:Rp

Rotation period

In August 2016, the first rotational lightcurve of Шаблон:Mp was obtained from photometric observations over five nights by Brian Warner at the Center for Solar System Studies Шаблон:Obscode in California. Lightcurve analysis gave a rotation period of Шаблон:Val hours with a high brightness variation of Шаблон:Val magnitude, indicative of a highly elongated shape (Шаблон:Small).[7]Шаблон:Efn

Notes

Шаблон:Notelist

References

Шаблон:Reflist

External links

Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:2020 in space Шаблон:Authority control

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  1. ↑ 1,0 1,1 1,2 1,3 Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  2. ↑ 2,0 2,1 Ошибка цитирования Неверный тег <ref>; для сносок lcdb не указан текст
  3. ↑ 3,0 3,1 3,2 Ошибка цитирования Неверный тег <ref>; для сносок MPC-object не указан текст
  4. ↑ 4,0 4,1 Ошибка цитирования Неверный тег <ref>; для сносок Perna-2018b не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Masiero-2017 не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Plait не указан текст
  7. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Warner-2017c не указан текст
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