13732 Woodall
Vestian asteroid from the asteroid belt
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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]
| Discovery[1] | |
|---|---|
| Discovered by | LINEAR |
| Discovery site | Lincoln Lab ETS |
| Discovery date | 14 September 1998 |
| Designations | |
| (13732) Woodall | |
Named after | Ashley Renee Woodall (DCYSC)[2] |
| 1998 RC56 · 1989 EU5 1991 VS13 · 1997 LA16 | |
| 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 |
| 2.3745 AU | |
| Eccentricity | 0.1002 |
| 3.66 yr (1,336 days) | |
| 13.655° | |
| 0° 16m 9.84s / day | |
| Inclination | 6.0477° |
| 204.72° | |
| 217.49° | |
| Physical characteristics | |
| Dimensions | 3.92 km (calculated)[3] |
| 8.2987±0.0005 h[4] | |
| 0.20 (assumed)[3] | |
| S[3][5] BâV = 0.864±0.147[6] VâR = 0.468±0.068[6] | |
| 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 2.1â2.6 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 OndÅejov 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]
