astro.wikisort.org - Asteroid

(111253) 2001 XU₁₀, provisional designation 2001 XU₁₀, is an asteroid on an eccentric orbit, classified as near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 3 kilometers in diameter. It was discovered on 9 December 2001, by astronomers of the LINEAR program at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States.[2] The asteroid is one of the largest potentially hazardous asteroids.[4]

(111253) 2001 XU₁₀

Discovery[1]
Discovered by	LINEAR
Discovery site	Lincoln Lab's ETS
Discovery date	9 December 2001
Designations
MPC designation	(111253) 2001 XU10
Alternative designations	2001 XU10
Minor planet category	Apollo · NEO · PHA[1][2]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	17.94 yr (6,552 days)
Aphelion	2.5242 AU
Perihelion	0.9832 AU
Semi-major axis	1.7537 AU
Eccentricity	0.4394
Orbital period (sidereal)	2.32 yr (848 days)
Mean anomaly	38.733°
Mean motion	0° 25m 27.84s / day
Inclination	42.020°
Longitude of ascending node	310.17°
Argument of perihelion	6.9341°
Earth MOID	0.0293 AU · 11.4 LD
Physical characteristics
Dimensions	3.006±0.893 km[3]
Geometric albedo	0.178±0.156[3]
Absolute magnitude (H)	15.2[1]

Orbit and classification

2001 XU₁₀ orbits the Sun at a distance of 0.98–2.52 AU once every 2 years and 4 months (848 days; semi-major axis of 1.75 AU). Its orbit has an eccentricity of 0.44 and an inclination of 42° with respect to the ecliptic.[1] The body's observation arc begins with a precovery taken by the Sloan Digital Sky Survey in February 2000.[2]

2001 XU₁₀ is a member of the Apollo asteroids, the largest subgroup of near-Earth asteroids which cross the orbit of Earth. It is also a Mars-crosser, as it crosses the orbit of the Red Planet at 1.66 AU.[1]

Close approaches

With an absolute magnitude of 15.2, 2001 XU₁₀ is one of the brightest and presumably largest known potentially hazardous asteroid (see PHA-list).[4] It has an Earth minimum orbital intersection distance of 0.0293 AU (4,380,000 km), which translates into 11.4 lunar distances (LD).[1] On 29 July 2054, this asteroid will make its closest near-Earth encounter of the 21st century at a nominal distance of 0.079 AU (31.1 LD).[1]

Physical characteristics

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, 2001 XU₁₀ measures 3.006 kilometers in diameter and its surface has an albedo of 0.178.[3]

As of 2018, no rotational lightcurve of 2001 XU₁₀ has been obtained from photometric observations. The asteroid's rotation period, spin axis and shape remain unknown. In addition, the body's spectral type has never been assessed.[1][5]

Numbering and naming

This minor planet was numbered by the Minor Planet Center on 19 October 2005.[6] As of 2018, it has not been named.[2]

References

External links

• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
• (111253) 2001 XU10 at NeoDyS-2, Near Earth Objects—Dynamic Site
  • Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
• (111253) 2001 XU10 at ESA–space situational awareness
  • Ephemerides · Observations · Orbit · Physical Properties · Summary
• (111253) 2001 XU10 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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- [en] (111253) 2001 XU10

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[ru] (111253) 2001 XU10

(111253) 2001 XU10, ранее 2001 XU10 — астероид на вытянутой орбите, околоземный и потенциально опасный объект группы аполлонов. Достигает 3 км в диаметре. Открыт 9 декабря 2001 года в рамках программы LINEAR наблюдателями в Лаборатории Линкольна в Нью-Мексико, США.[2] Является одним из крупнейших потенциально опасных астероидов.[4]

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