13241 Biyo

Main-belt asteroid October 2019 yes 13241 Biyo #D6D6D6 LINEAR Lincoln Lab's ETS 22 May 1998 (13241) Biyo 1998 KM 411975 UB 1 Josette Biyo(Filipino educator) main-beltFlora regionbackground 27 April 2019 (JD 2458600.5) 0 44.01 yr (16,073 d) 2.4215 AU 2.1263 AU 2.2739 AU 0.0649 3.43 yr (1,252 d) 125.48° 0.2874 ms / day 7.3001° 56.739° 93.848° 3.9 km (calculated) 4.4 0.4 h2.199 0.219 h (half-period) 0.24 (assumed) SV–R 0.380 0.03 14.214.3 13241 Biyo, provisional designation 1998 KM 41, is a background asteroid from the Flora region of the inner asteroid belt, approximately 4 km mi off 2 us in diameter. It was discovered on 22 May 1998, by the Lincoln Near-Earth Asteroid Research team (LINEAR) at the U.S. Lincoln Laboratory Experimental Test Site in Socorro, New Mexico. The presumed S-type asteroid has a rotation period of 4.4 hours and likely an elongated shape. It was later named after Filipino educator Josette Biyo. Orbit and classification Biyo is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. Based on osculating Keplerian orbital elements, the asteroid has also been classified as a member of the Flora family (402), a giant asteroid clan and the largest family of stony asteroids in the main-belt. It orbits the Sun in the inner asteroid belt at a distance of 2.1–2.4 AU once every 3 years and 5 months (1,252 days; semi-major axis of 2.27 AU). Its orbit has an eccentricity of 0.06 and an inclination of 7° with respect to the ecliptic. It was first identified as 1975 UB 1 at the Karl Schwarzschild Observatory in 1975, extending the body's observation arc by 23 years prior to its official discovery observation at Socorro. Naming This minor planet was named after Josette Biyo (born 1958), a Filipino educator, former executive director of the Philippine Science High School System and now the director of Department of Science and Technology- Science Education Institute.http://www.sei.dost.gov.ph/ Home sei.dost.gov.ph The naming was part of the International Excellence in Teaching Award she received during the Intel International Science and Engineering Fair held in Louisville, Kentucky, in 2002, when she was a teacher at the Philippine Science High School in Iloilo, Philippines. Biyo was the first Asian teacher to win the Intel Excellence in Teaching Award. The official 13241 naming citation was published by the Minor Planet Center on 24 July 2002 (M.P.C. 46109). Physical characteristics Rotation and shape In March 2011, a rotational lightcurve of Biyo was obtained from photometric observations by Italian astronomers at the Virginio Cesarini Observatory (157) in Frasso Sabino, Italy. Lightcurve analysis gave a rotation period of 4.4 hours (twice the original reported period solution of 2.199 0.219 in the R-band) with a brightness amplitude of 0.99 magnitude, which indicates that the body has an elongated, non-spheroidal shape (U=2). The Italian astronomers also determined a V–R color of 0.38. Diameter and albedo For this asteroid, no observational data has been gathered by the space-based telescopes (IRAS, Akari and WISE) that surveyed large portions of the asteroid belt. The Collaborative Asteroid Lightcurve Link assumes an albedo for a stony asteroid of 0.24 – derived from 8 Flora, the largest member and namesake of the Flora family – and calculates a diameter of 3.92 kilometers with an absolute magnitude of 14.2. References 30em 2019-10-31 last obs. JPL Small-Body Database Browser: 13241 Biyo (1998 KM41) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2013241 Jet Propulsion Laboratory 23 November 2019 13241 Biyo (1998 KM41) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=13241 24 April 2017 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 24 April 2017 Asteroid 13241 Biyo – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=13241+Biyo 23 November 2019 https://web.archive.org/web/20201004064542/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=13241+Biyo 4 October 2020 dead Asteroid 13241 Biyo – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=13241 23 November 2019 Fernandez Rudy Small planet named after Pinoy science teacher Philippine Star 2 February 2003 http://www.philstar.com/headlines/193829/small-planet-named-after-pinoy-science-teacher 24 April 2017 13241 24 April 2017 (SearchForm) Asteroid Size Estimator CNEOS NASA/JPL https://cneos.jpl.nasa.gov/tools/ast_size_est.html 23 November 2019 Raniero Albanesi Massimo Calabresi Roberto Haver October 2011 Photometry of Asteroid 13241 Biyo http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011MPBu...38..181A The Minor Planet Bulletin 38 4 181–182 1052-8091 2011MPBu...38..181A 24 April 2017 External links DOST's 50 great Men And Women Of Science – 8. Josette Biyo, The Manila Times, 2008 Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 ) Dictionary of Minor Planet Names, Google books Discovery Circumstances: Numbered Minor Planets (10001)-(15000) – Minor Planet Center 13241 13240 Thouvay 13241 013241 013241 Category:Named minor planets 19980522