13732 Woodall

13732 Woodall, provisional designation 1998 RC₅₆, is a stony Vestian asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 14 September 1998, by the Lincoln Near-Earth Asteroid Research (LINEAR) team at Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico.^[7]

13732 Woodall

Discovery[1]
Discovered by	LINEAR
Discovery site	Lincoln Lab ETS
Discovery date	14 September 1998
Designations
MPC designation	(13732) Woodall
Named after	Ashley Renee Woodall (DCYSC)[2]
Alternative designations	1998 RC56 · 1989 EU5 1991 VS13 · 1997 LA16
Minor planet category	main-belt · Vestian[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	27.75 yr (10,135 days)
Aphelion	2.6124 AU
Perihelion	2.1366 AU
Semi-major axis	2.3745 AU
Eccentricity	0.1002
Orbital period (sidereal)	3.66 yr (1,336 days)
Mean anomaly	13.655°
Mean motion	0° 16m 9.84s / day
Inclination	6.0477°
Longitude of ascending node	204.72°
Argument of perihelion	217.49°
Physical characteristics
Dimensions	3.92 km (calculated)[3]
Synodic rotation period	8.2987±0.0005 h[4]
Geometric albedo	0.20 (assumed)[3]
Spectral type	S[3][5] B–V = 0.864±0.147[6] V–R = 0.468±0.068[6]
Absolute magnitude (H)	14.4[1][3] · 15.23±0.10[5]

Orbit and classification

Woodall is a member of the Vesta family, which is named after 4 Vesta, the second-largest asteroid in the main-belt. It orbits the Sun in the inner main-belt at a distance of 2.1–2.6 AU once every 3 years and 8 months (1,336 days). Its orbit has an eccentricity of 0.10 and an inclination of 6° with respect to the ecliptic.^[1] The first precovery was taken at Siding Spring Observatory in 1989, extending the asteroid's observation arc by 9 years prior to its official discovery observation.^[7]

Physical characteristics

Woodall has been characterized as a common S-type asteroid by Pan-STARRS photometric survey.^[5]

A rotational lightcurve was obtained based on photometric observations by Czech astronomer Petr Pravec at the Ondřejov Observatory in September 2009. Lightcurve analysis gave a well-defined rotation period of 8.2987 hours with a brightness amplitude of 0.27 in magnitude (U=3).^[4]

The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 3.9 kilometers with an absolute magnitude of 14.4.^[3]

Naming

This minor planet was named after Ashley Renee Woodall (born 1987) student at the U.S. Austin Academy for Excellence in Garland, Texas. In 2002, she was a finalist of the Discovery Channel Young Scientist Challenge (DCYSC), a science and engineering competition.^[2] The approved naming citation was published by the Minor Planet Center on 21 October 2002 (M.P.C. 46767).^[8]