2518 Rutllant

Rutllant is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun in the inner main-belt at a distance of 1.9–2.7 AU once every 3 years and 6 months (1,281 days). Its orbit has an eccentricity of 0.17 and an inclination of 6° with respect to the ecliptic. A first precovery was taken at Goethe Link Observatory in 1954, extending the body's observation arc by 20 years prior to its official discovery observation at Cerro El Roble.

Rutllant has been characterized as a stony S-type asteroid.

A rotational lightcurve was obtained by American astronomer Brian Warner at his Palmer Divide Observatory ({{small|716}}), Colorado, in October 2010. The lightcurve gave a well-defined period of {{val|3.651}} hours with a relatively low brightness variation of 0.12 in magnitude ({{small|U=3}}).

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid has an outstandingly high albedo of 0.77 with a diameter of 3.2 kilometer, while the Collaborative Asteroid Lightcurve Link (CALL) assumes an albedo of 0.24, derived from the Flora family's largest member and namesake, the asteroid 8 Flora. Consequently, CALL calculates a much larger diameter of 5.9 kilometer, as the lower the albedo (reflectivity), the larger the body's diameter at a constant absolute magnitude (brightness).

This minor planet was named in memory of Spanish-born astronomer Federico Alcina (1904–1971), director of the Chilean National Astronomical Observatory (OAN), and professor of mathematics at Federico Santa María Technical University.

Alcina was instrumental for the development of Chilean astronomy, and responsible for a number of critical agreements and decisions, such as moving OAN from Lo Espejo to its current location, for the installment of the Maipú Radio Observatory upon an agreement with UF, for another agreement with UChicago, University of Texas, and later AURA — that resulted in the setup of the CTIO, as well as for an agreement with the former Soviet Academy of Sciences that lead to the building of the Cerro El Roble Station, where this minor planet was discovered. The official naming citation was published by the Minor Planet Center on 26 March 1986 ({{small|M.P.C. 10545}}).

{{reflist|30em|refs=

{{cite web

|type = 2017-04-26 last obs.

|title = JPL Small-Body Database Browser: 2518 Rutllant (1974 FG)

|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002518

|archive-url = https://web.archive.org/web/20200920031612/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002518

|archive-date = 20 September 2020

|publisher = Jet Propulsion Laboratory

|access-date = 14 June 2017}}

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|publisher = Springer Berlin Heidelberg

|pages = 205–206

|date = 2007

|isbn = 978-3-540-00238-3

|doi = 10.1007/978-3-540-29925-7_2519 |chapter = (2518) Rutllant }}

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|work = Minor Planet Center

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|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=2518%7CRutllant

|access-date = 17 May 2016}}

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|date = April 2011

|title = Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2010 September-December

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|first9 = William S. |last9 = Burgett

|first10 = Kenneth C. |last10 = Chambers

|first11 = Heather |last11 = Flewelling

|first12 = Nick |last12 = Kaiser

|first13 = Eugen A. |last13 = Magnier

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|first17 = Christopher |last17 = Waters

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}}

• {{YouTube|id=3Kn3s98KRYw|title=The Palmer Divide Observatory: Tour given by Brian Warner}} {{small|(time 4:03 min.)}}
• [http://www.minorplanetobserver.com/pdolc/A2518_2010.HTM Lightcurve plot of 2518 Rutllant], Palmer Divide Observatory, B. D. Warner (2010)
• [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|2518}}
• {{JPL small body}}

{{Minor planets navigator |2517 Orma |number=2518 |2519 Annagerman}}

{{Small Solar System bodies}}

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002518

Category:Discoveries by Carlos Torres (astronomer)

Category:Named minor planets

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