2443 Tomeileen

Tomeileen is a member the Eos family ({{small|606}}), the largest asteroid family of the outer main belt consisting of nearly 10,000 asteroids. It orbits the Sun in the outer main-belt at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,903 days; semi-major axis of 3.01 AU). Its orbit has an eccentricity of 0.06 and an inclination of 11° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Heidelberg in January 1906.

Tomeileen has been characterized as a stony S-type asteroid in the SDSS-MFB (Masi Foglia Binzel) taxonomy.{{efn|name=SDSS-MFB}}

Between 2004 and 2010, three rotational lightcurves of Tomeileen were obtained from photometric observations by Brazilian and Argentine astronomers, Amadeo Aznar at Puzol Observatory {{Obscode|J42}},{{efn|name=lcdb-Aznar-2011}} and Laurent Bernasconi in France. Lightcurve analysis gave a rotation period of 3.974, 4.0 and 6.822 hours with a brightness amplitude of 0.1, 0.10 and 0.13 magnitude, respectively ({{small|U=2/2/2}}). A low amplitude is indicative of a spherical rather than elongated shape.

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Tomeileen measures between 28.44 and 37.577 kilometers in diameter and its surface has an albedo between 0.1042 and 0.199.

The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1539 and a diameter of kilometers based on an absolute magnitude of 10.2.

This minor planet was named after Thomas Marsden (1905–1980) and Eileen (née West) Marsden (1905–1981), the parents of British astronomer and longtime director of the Minor Planet Center (MPC), Brian G. Marsden (1937–2010). The official naming citation was published by the MPC on 8 April 1982 ({{small|M.P.C. 6833}}).

{{notelist|refs=

{{efn|name=lcdb-Aznar-2011|1=Aznar (2011) web: observation from February 2010, rotation period {{val|4.0|0.1}} hours with a brightness amplitude of {{val|0.10|0.02}} mag. Quality code of 2. Summary figures for (2443) Tomeileen at the [http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=2443%7CTomeileen LCDB]}}

{{efn|name=SDSS-MFB|1=Search for Unusual Spectroscopic Candidates Among 40313 minor planets from the 3rd Release of the Sloan Digital Sky Survey Moving Object Catalog ([http://people.roma2.infn.it/~masi/sdss_smass/sdsssmass.pdf publication]). SDSS-MFB (Masi Foglia Binzel) taxonomy ([http://people.roma2.infn.it/~masi/sdss_smass/sdsssmass.txt catalog]).}}

}}

{{reflist|30em|refs=

{{cite web

|type = 2017-10-29 last obs.

|title = JPL Small-Body Database Browser: 2443 Tomeileen (A906 BJ)

|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002443

|archive-url = https://web.archive.org/web/20200920031451/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002443

|url-status = dead

|archive-date = 20 September 2020

|publisher = Jet Propulsion Laboratory

|accessdate = 4 April 2018}}

{{cite web

|title = 2443 Tomeileen (A906 BJ)

|work = Minor Planet Center

|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=2443

|accessdate = 4 April 2018}}

{{cite web

|title = MPC/MPO/MPS Archive

|work = Minor Planet Center

|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html

|accessdate = 4 April 2018}}

{{cite web

|title = Asteroids and comets rotation curves – (2443) Tomeileen

|last = Behrend |first = Raoul

|publisher = Geneva Observatory

|url = http://obswww.unige.ch/~behrend/page4cou.html#002443

|accessdate = 4 April 2018}}

{{cite journal

|display-authors = 6

|first1 = Joseph R. |last1 = Masiero

|first2 = T. |last2 = Grav

|first3 = A. K. |last3 = Mainzer

|first4 = C. R. |last4 = Nugent

|first5 = J. M. |last5 = Bauer

|first6 = R. |last6 = Stevenson

|first7 = S. |last7 = Sonnett

|date = August 2014

|title = Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos

|journal = The Astrophysical Journal

|volume = 791

|issue = 2

|page = 11

|bibcode = 2014ApJ...791..121M

|doi = 10.1088/0004-637X/791/2/121

|arxiv = 1406.6645

}}

{{cite web

|title = Asteroid 2443 Tomeileen – Nesvorny HCM Asteroid Families V3.0

|work = Small Bodies Data Ferret

|url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=2443+Tomeileen#Asteroid%202443%20TomeileenEAR-A-VARGBDET-5-NESVORNYFAM-V3.0

|accessdate = 26 October 2019}}

{{Cite book

|first1 = D. |last1 = Nesvorný

|first2 = M. |last2 = Broz

|first3 = V. |last3 = Carruba

|date = December 2014

|chapter = Identification and Dynamical Properties of Asteroid Families

|title = Asteroids IV

|pages = 297–321

|bibcode = 2015aste.book..297N

|doi = 10.2458/azu_uapress_9780816532131-ch016

|arxiv = 1502.01628

|isbn = 9780816532131

}}

{{cite web

|title = LCDB Data for (2443) Tomeileen

|publisher = Asteroid Lightcurve Database (LCDB)

|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=2443%7CTomeileen

|accessdate = 4 April 2018}}

{{cite journal

|display-authors = 6

|first1 = Fumihiko |last1 = Usui

|first2 = Daisuke |last2 = Kuroda

|first3 = Thomas G. |last3 = Müller

|first4 = Sunao |last4 = Hasegawa

|first5 = Masateru |last5 = Ishiguro

|first6 = Takafumi |last6 = Ootsubo

|first7 = Daisuke |last7 = Ishihara

|first8 = Hirokazu |last8 = Kataza

|first9 = Satoshi |last9 = Takita

|first10 = Shinki |last10 = Oyabu

|first11 = Munetaka |last11 = Ueno

|first12 = Hideo |last12 = Matsuhara

|first13 = Takashi |last13 = Onaka

|date = October 2011

|title = Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey

|journal = Publications of the Astronomical Society of Japan

|volume = 63

|issue = 5

|pages = 1117–1138

|bibcode = 2011PASJ...63.1117U

|doi = 10.1093/pasj/63.5.1117

|doi-access=

}} ([http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-source=J/PASJ/63/1117/acua_v1&Num=2443 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])

{{cite journal

|display-authors = 6

|first1 = A. |last1 = Mainzer

|first2 = T. |last2 = Grav

|first3 = J. |last3 = Masiero

|first4 = E. |last4 = Hand

|first5 = J. |last5 = Bauer

|first6 = D. |last6 = Tholen

|first7 = R. S. |last7 = McMillan

|first8 = T. |last8 = Spahr

|first9 = R. M. |last9 = Cutri

|first10 = E. |last10 = Wright

|first11 = J. |last11 = Watkins

|first12 = W. |last12 = Mo

|first13 = C. |last13 = Maleszewski

|date = November 2011

|title = NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results

|journal = The Astrophysical Journal

|volume = 741

|issue = 2

|page = 25

|bibcode = 2011ApJ...741...90M

|doi = 10.1088/0004-637X/741/2/90

|arxiv = 1109.6407

}}

{{cite journal

|display-authors = 6

|first1 = Joseph R. |last1 = Masiero

|first2 = A. K. |last2 = Mainzer

|first3 = T. |last3 = Grav

|first4 = J. M. |last4 = Bauer

|first5 = R. M. |last5 = Cutri

|first6 = C. |last6 = Nugent

|first7 = M. S. |last7 = Cabrera

|date = November 2012

|title = Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids

|journal = The Astrophysical Journal Letters

|volume = 759

|issue = 1

|page = 5

|bibcode = 2012ApJ...759L...8M

|doi = 10.1088/2041-8205/759/1/L8

|arxiv = 1209.5794

}}

{{cite journal

|first1 = E. F. |last1 = Tedesco

|first2 = P. V. |last2 = Noah

|first3 = M. |last3 = Noah

|first4 = S. D. |last4 = Price

|date = October 2004

|title = IRAS Minor Planet Survey V6.0

|url = https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab

|journal = NASA Planetary Data System

|volume = 12

|pages = IRAS-A-FPA-3-RDR-IMPS-V6.0

|bibcode = 2004PDSS...12.....T

|accessdate = 22 October 2019}}

{{Cite journal

|first1 = Alvaro |last1 = Alvarez-Candal

|first2 = René |last2 = Duffard

|first3 = Cláudia A. |last3 = Angeli

|first4 = Daniela |last4 = Lazzaro

|first5 = Silvia |last5 = Fernández

|date = December 2004

|title = Rotational lightcurves of asteroids belonging to families

|journal = Icarus

|volume = 172

|issue = 2

|pages = 388–401

|bibcode = 2004Icar..172..388A

|doi = 10.1016/j.icarus.2004.06.008

}}

{{cite journal

|display-authors = 6

|first1 = Peter |last1 = Veres

|first2 = Robert |last2 = Jedicke

|first3 = Alan |last3 = Fitzsimmons

|first4 = Larry |last4 = Denneau

|first5 = Mikael |last5 = Granvik

|first6 = Bryce |last6 = Bolin

|first7 = Serge |last7 = Chastel

|first8 = Richard J. |last8 = Wainscoat

|first9 = William S. |last9 = Burgett

|first10 = Kenneth C. |last10 = Chambers

|first11 = Heather |last11 = Flewelling

|first12 = Nick |last12 = Kaiser

|first13 = Eugen A. |last13 = Magnier

|first14 = Jeff S. |last14 = Morgan

|first15 = Paul A. |last15 = Price

|first16 = John L. |last16 = Tonry

|first17 = Christopher |last17 = Waters

|date = November 2015

|title = Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results

|journal = Icarus

|volume = 261

|pages = 34–47

|bibcode = 2015Icar..261...34V

|doi = 10.1016/j.icarus.2015.08.007

|arxiv = 1506.00762

}}

}}

• [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info] {{Webarchive|url=https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html |date=16 December 2017 }})
• [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
• [http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend
• [https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
• {{AstDys|2443}}
• {{JPL small body}}

{{Minor planets navigator |2442 Corbett |number=2443 |2444 Lederle}}

{{Small Solar System bodies}}

{{Authority control}}

{{DEFAULTSORT:Tomeileen}}

002443

Category:Discoveries by Max Wolf

Category:Named minor planets

19060124