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] B–V = 0.864±0.147[6] V–R = 0.468±0.068[6] | |
| 14.4[1][3] · 15.23±0.10[5] | |
Orbit and classification
editWoodall 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
editWoodall 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
editThis 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]
References
edit- ^ a b c d "JPL Small-Body Database Browser: 13732 Woodall (1998 RC56)" (2016-11-30 last obs.). Jet Propulsion Laboratory. Retrieved 5 July 2017.
- ^ a b Schmadel, Lutz D. (2007). "(13732) Woodall". Dictionary of Minor Planet Names – (13732) Woodall. Springer Berlin Heidelberg. p. 803. doi:10.1007/978-3-540-29925-7_8874. ISBN 978-3-540-00238-3.
- ^ a b c d e f "LCDB Data for (13732) Woodall". Asteroid Lightcurve Database (LCDB). Retrieved 7 April 2016.
- ^ a b Pravec, P.; Vokrouhlický, D.; Polishook, D.; Scheeres, D. J.; Harris, A. W.; Galád, A.; et al. (August 2010). "Formation of asteroid pairs by rotational fission". Nature. 466 (7310): 1085–1088. arXiv:1009.2770. Bibcode:2010Natur.466.1085P. doi:10.1038/nature09315. PMID 20740010. S2CID 4418631.
- ^ a b c Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. S2CID 53493339.
- ^ a b Ye, Q.-z. (February 2011). "BVRI Photometry of 53 Unusual Asteroids". The Astronomical Journal. 141 (2): 8. arXiv:1011.0133. Bibcode:2011AJ....141...32Y. doi:10.1088/0004-6256/141/2/32. S2CID 119307210.
- ^ a b "13732 Woodall (1998 RC56)". Minor Planet Center. Retrieved 7 April 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 19 May 2016.
External links
edit- Nature, Formation of asteroid pairs by rotational fission (26 August 2010)
- 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 (10001)-(15000) – Minor Planet Center
- 13732 Woodall at AstDyS-2, Asteroids—Dynamic Site
- 13732 Woodall at the JPL Small-Body Database
