astro.wikisort.org - Asteroid

51825 Davidbrown, provisional designation 2001 OQ₃₃, is an Eoan asteroid in the outer region of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 19 July 2001, by astronomers of the Near-Earth Asteroid Tracking program at Palomar Observatory in California, United States. The asteroid was named for American astronaut David Brown, who died in the Space Shuttle Columbia disaster.[5]

51825 Davidbrown

Discovery [1]
Discovered by	NEAT
Discovery site	Palomar Obs.
Discovery date	19 July 2001
Designations
MPC designation	(51825) Davidbrown
Named after	David McDowell Brown [2] (American astronaut)
Alternative designations	2001 OQ33 · 1994 CZ14 1999 CO55
Minor planet category	main-belt · (outer) Eos [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	23.79 yr (8,691 days)
Aphelion	3.1755 AU
Perihelion	2.7587 AU
Semi-major axis	2.9671 AU
Eccentricity	0.0702
Orbital period (sidereal)	5.11 yr (1,867 days)
Mean anomaly	316.75°
Mean motion	0° 11m 34.08s / day
Inclination	9.6190°
Longitude of ascending node	23.457°
Argument of perihelion	33.210°
Physical characteristics
Dimensions	4.913±0.760 km[4]
Geometric albedo	0.184±0.032[4]
Absolute magnitude (H)	14.2[1]

Orbit and classification

Davidbrown is a member the Eos family (606),[3] the largest family in the outer asteroid belt consisting of nearly 10,000 K-type asteroids.[6]^: 23 It orbits the Sun in the outer main-belt at a distance of 2.8–3.2 AU once every 5 years and 1 month (1,867 days; semi-major axis of 2.97 AU). Its orbit has an eccentricity of 0.07 and an inclination of 10° with respect to the ecliptic.[1]

The body's observation arc begins with its first observation as 1994 CZ₁₄ at ESO's La Silla Observatory in February 1994, more than 7 years prior to its official discovery observation at Palomar.[5]

Physical characteristics

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Davidbrown measures 4.913 kilometers in diameter and its surface has an albedo of 0.184.[4]

Rotation period

As of 2017, no rotational lightcurve of Davidbrown has been obtained from photometric observations. The asteroid's rotation period, poles and shape remain unknown.[1][7]

Naming

This minor planet was named after American astronaut and mission specialist David McDowell Brown, who was killed in the Columbia space shuttle reentry disaster on 1 February 2003.[2] The approved naming citation was published by the Minor Planet Center on 6 August 2003 (M.P.C. 49283).[8] The following asteroids were also named in memory of the other six members of STS-107: 51823 Rickhusband, 51824 Mikeanderson, 51826 Kalpanachawla, 51827 Laurelclark, 51828 Ilanramon and 51829 Williemccool.

References

External links

• NASA JPL - Space Shuttle Columbia Tribute page
• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• Dictionary of Minor Planet Names, Google books
• Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
• Discovery Circumstances: Numbered Minor Planets (50001)-(55000) – Minor Planet Center
• 51825 Davidbrown at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 51825 Davidbrown at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (51825) Davidbrown

(51825) Davidbrown ist ein Asteroid des äußeren Hauptgürtels, der am 19. Juli 2001 von der US-amerikanischen Astronomin Eleanor Helin[1] entdeckt wurde, auf Aufnahmen des Projektes Near Earth Asteroid Tracking (NEAT), die mit dem 120-cm-Oschin-Schmidt-Teleskop des Palomar-Observatoriums (IAU-Code 644) in Kalifornien gemacht worden waren. Unbestätigte Sichtungen des Asteroiden hatte es vorher schon am 8. und 10. Februar 1994 unter der vorläufigen Bezeichnung 1994 CZ14 am La-Silla-Observatorium der Europäischen Südsternwarte in Chile gegeben, sowie am 10. und 13. Februar 1999 (1999 CO55) an der Lincoln Laboratory Experimental Test Site (ETS) in Socorro, New Mexico.[2]

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- [en] 51825 Davidbrown

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[es] (51825) Davidbrown

Davidbrown. Asteroide n.º 51825 de la serie (2001 OQ33 ), descubierto desde Monte Palomar (California) por Eleanor F. Helin el 19 de julio de 2001, dentro del programa NEAT (Near-Earth Asteroid Tracking Program).-

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[ru] (51825) Дэвидбраун

(51825) Дэвидбраун (англ. Davidbrown) — астероид главного пояса, который был открыт 19 июля 2001 года в рамках программы NEAT по поиску околоземных астероидов в Паломарской обсерватории, США и назван в честь американского астронавта Дэвида Брауна, погибшего 1 февраля 2003 года в результате катастрофы шаттла «Колумбия».

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