Astronomy:51825 Davidbrown
| Discovery [1] | |
|---|---|
| Discovered by | NEAT |
| Discovery site | Palomar Obs. |
| Discovery date | 19 July 2001 |
| Designations | |
| (51825) Davidbrown | |
| Named after | David McDowell Brown [2] (American astronaut) |
| 2001 OQ33 · 1994 CZ14 1999 CO55 | |
| Minor planet category | main-belt · (outer) Eos [3] |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 23.79 yr (8,691 days) |
| |{{{apsis}}}|helion}} | 3.1755 AU |
| |{{{apsis}}}|helion}} | 2.7587 AU |
| 2.9671 AU | |
| Eccentricity | 0.0702 |
| Orbital period | 5.11 yr (1,867 days) |
| Mean anomaly | 316.75° |
| Mean motion | 0° 11m 34.08s / day |
| Inclination | 9.6190° |
| Longitude of ascending node | 23.457° |
| 33.210° | |
| Physical characteristics | |
| Dimensions | 4.913±0.760 km[4] |
| Geometric albedo | 0.184±0.032[4] |
| Absolute magnitude (H) | 14.2[1] |
51825 Davidbrown (provisional designation 2001 OQ33) is an Eoan asteroid in the outer region of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 19 July 2001, by astronomers of the Near-Earth Asteroid Tracking program at Palomar Observatory in California, United States. The asteroid was named for American astronaut David Brown, who died in the Space Shuttle Columbia disaster.[5]
Orbit and classification
Davidbrown is a member the Eos family (606),[3] the largest family in the outer asteroid belt consisting of nearly 10,000 K-type asteroids.[6]:23 It orbits the Sun in the outer main-belt at a distance of 2.8–3.2 AU once every 5 years and 1 month (1,867 days; semi-major axis of 2.97 AU). Its orbit has an eccentricity of 0.07 and an inclination of 10° with respect to the ecliptic.[1]
The body's observation arc begins with its first observation as 1994 CZ14 at ESO's La Silla Observatory in February 1994, more than 7 years prior to its official discovery observation at Palomar.[5]
Physical characteristics
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Davidbrown measures 4.913 kilometers in diameter and its surface has an albedo of 0.184.[4]
Rotation period
As of 2017, no rotational lightcurve of Davidbrown has been obtained from photometric observations. The asteroid's rotation period, poles and shape remain unknown.[1][7]
Naming
This minor planet was named after American astronaut and mission specialist David McDowell Brown, who was killed in the Columbia space shuttle reentry disaster on 1 February 2003.[2] The approved naming citation was published by the Minor Planet Center on 6 August 2003 (M.P.C. 49283).[8] The following asteroids were also named in memory of the other six members of STS-107: 51823 Rickhusband, 51824 Mikeanderson, 51826 Kalpanachawla, 51827 Laurelclark, 51828 Ilanramon and 51829 Williemccool.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 "JPL Small-Body Database Browser: 51825 Davidbrown (2001 OQ33)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2051825.
- ↑ 2.0 2.1 Schmadel, Lutz D. (2006). "(51825) Davidbrown [2.97, 0.07, 9.6]". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 216. doi:10.1007/978-3-540-34361-5_2554. ISBN 978-3-540-34361-5.
- ↑ 3.0 3.1 "Asteroid 51825 Davidbrown – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=51825+Davidbrown#Asteroid%2051825%20DavidbrownEAR-A-VARGBDET-5-NESVORNYFAM-V3.0.
- ↑ 4.0 4.1 4.2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J. et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal 741 (2): 20. doi:10.1088/0004-637X/741/2/68. Bibcode: 2011ApJ...741...68M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M. Retrieved 28 December 2017.
- ↑ 5.0 5.1 "51825 Davidbrown (2001 OQ33)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=51825.
- ↑ Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 978-0-8165-3213-1. Bibcode: 2015aste.book..297N.
- ↑ "LCDB Data for (51825) Davidbrown". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=51825%7CDavidbrown.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.
External links
- NASA JPL - Space Shuttle Columbia Tribute page
- 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 (50001)-(55000) – Minor Planet Center
- 51825 Davidbrown at AstDyS-2, Asteroids—Dynamic Site
- 51825 Davidbrown at the JPL Small-Body Database
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