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34351 Decatur

Main-belt asteroid

Field	Value
minorplanet	yes
name	34351 Decatur
background	#D6D6D6
discovery_ref
discovered	3 September 2000
discoverer	L. Ball
discovery_site	Emerald Lane Obs.
mpc_name	(34351) Decatur
alt_names

named_after	Decatur (U.S. city)
mp_category	main-belt(outer)
Koronis
orbit_ref
epoch	23 March 2018 (JD 2458200.5)
uncertainty	0
observation_arc	26.31 yr (9,609 d)
aphelion	3.1502 AU
perihelion	2.7415 AU
semimajor	2.9458 AU
eccentricity	0.0694
period	5.06 yr (1,847 d)
mean_anomaly	108.47°
mean_motion	/ day
inclination	1.2964°
asc_node	343.30°
arg_peri	85.412°
mean_diameter
albedo
spectral_type	Q (SDSS-MOC)
abs_magnitude	14.7

Koronis

34351 Decatur (provisional designation ****) is a Koronis asteroid from the outer region of the asteroid belt, approximately 3.5 km in diameter. It was discovered on 3 September 2000, by American amateur astronomer Loren Ball at his Emerald Lane Observatory in Alabama, United States. The Q-type asteroid was named after the city of Decatur, location of the discovering observatory.

Orbit and classification

Decatur is a member of the Koronis family (605), a very large outer asteroid family with nearly co-planar ecliptical orbits. It orbits the Sun in the outer main-belt at a distance of 2.7–3.2 AU once every 5 years and 1 month (1,847 days; semi-major axis of 2.95 AU). Its orbit has an eccentricity of 0.07 and an inclination of 1° with respect to the ecliptic. The asteroid's observation arc begins 8 years prior to its official discovery observation, with a precovery taken by the Steward Observatory's Spacewatch survey at Kitt Peak in January 1992.

Naming

This minor planet was named after the city of Decatur in the U.S. state of Alabama, location of the discovering observatory and home of the discoverer. Decatur is located near NASA's Marshall Space Flight Center. The official naming citation was published by the Minor Planet Center on 27 April 2002 (M.P.C. 45345).

Physical characteristics

In the SDSS-based taxonomy, Decatur is a Q-type asteroid, while members of the Koronis family are typically S-type asteroid. According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Decatur measures 3.54 kilometers in diameter and its surface has an albedo of 0.224.

Rotation period

As of 2018, no rotational lightcurve of Decatur has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.

References

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.

koronis-asteroids discoveries-by-loren-c.-ball named-minor-planets astronomical-objects-discovered-in-2000

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