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51825 Davidbrown

Main-belt asteroid

Field	Value
minorplanet	yes
name	51825 Davidbrown
background	#D6D6D6
discovery_ref
discoverer	NEAT
discovery_site	Palomar Obs.
discovered	19 July 2001
mpc_name	(51825) Davidbrown
alt_names

named_after	David McDowell Brown
(American astronaut)
mp_category	main-belt(outer)
Eos
orbit_ref
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	23.79 yr (8,691 days)
aphelion	3.1755 AU
perihelion	2.7587 AU
semimajor	2.9671 AU
eccentricity	0.0702
period	5.11 yr (1,867 days)
mean_anomaly	316.75°
mean_motion	/ day
inclination	9.6190°
asc_node	23.457°
arg_peri	33.210°
dimensions	km
albedo
abs_magnitude	14.2

(American astronaut) Eos

51825 Davidbrown (provisional designation ****) 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.

Orbit and classification

Davidbrown is a member the Eos family (606), the largest family in the outer asteroid belt consisting of nearly 10,000 K-type asteroids. 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.

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

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.

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.

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. The approved naming citation was published by the Minor Planet Center on 6 August 2003 (M.P.C. 49283). 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

Asteroid Lightcurve Database (LCDB), query form (info )
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

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

eos-asteroids discoveries-by-neat named-minor-planets astronomical-objects-discovered-in-2001

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