Astronomy:13732 Woodall
| 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 | |
| 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) |
| |{{{apsis}}}|helion}} | 2.6124 AU |
| |{{{apsis}}}|helion}} | 2.1366 AU |
| 2.3745 AU | |
| Eccentricity | 0.1002 |
| Orbital period | 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° |
| 217.49° | |
| Physical characteristics | |
| Dimensions | 3.92 km (calculated)[3] |
| Rotation period | 8.2987±0.0005 h[4] |
| Geometric albedo | 0.20 (assumed)[3] |
| 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] |
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]
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 ({{{1}}}).[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]
References
- ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 13732 Woodall (1998 RC56)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2013732. Retrieved 5 July 2017.
- ↑ 2.0 2.1 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.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "LCDB Data for (13732) Woodall". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=13732%7CWoodall. Retrieved 7 April 2016.
- ↑ 4.0 4.1 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. doi:10.1038/nature09315. PMID 20740010. Bibcode: 2010Natur.466.1085P.
- ↑ 5.0 5.1 5.2 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. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V.
- ↑ 6.0 6.1 Ye, Q.-z. (February 2011). "BVRI Photometry of 53 Unusual Asteroids". The Astronomical Journal 141 (2): 8. doi:10.1088/0004-6256/141/2/32. Bibcode: 2011AJ....141...32Y.
- ↑ 7.0 7.1 "13732 Woodall (1998 RC56)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=13732. Retrieved 7 April 2016.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html. Retrieved 19 May 2016.
External links
- Nature, Formation of asteroid pairs by rotational fission (26 August 2010)
- 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 (10001)-(15000) – Minor Planet Center
- 13732 Woodall at AstDyS-2, Asteroids—Dynamic Site
- 13732 Woodall at the JPL Small-Body Database
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