(459883) 2014 JX55

Main-belt asteroid February 2018 yes (459883) 2014 JX 55 #D6D6D6 WISE WISE 28 June 2010 (459883) 2014 JX 55 2007 EB 262010 MV 87 main-belt(middle) 27 April 2019 (JD 2458600.5) 0 11.24 yr (4,106 d) 3.0725 AU 2.1810 AU 2.6267 AU 0.1697 4.26 yr (1,555 d) 51.957° 0.2315 ms / day 32.070° 271.86° 32.457° 2.8 km (est. at 0.1) 15.9 (459883) 2014 JX 55 is an asteroid from the central regions of the asteroid belt. After its first observations in 2007, where it was designated 2007 EB 26, it was thought to be an inner heliospheric asteroid and near-Earth object with one of the closest perihelions ever observed of any body orbiting the Sun, until further observations found differently. The object measures approximately 2.8 km mi off 2 us in diameter. Orbit and classification Inner heliospheric asteroid When the object was first observed as 2007 EB 26 by the Mount Lemmon Survey in March 2007, it was thought to have the second-smallest positive semi-major axis (0.55 AU) of any known object orbiting the Sun, after Mercury. It was classified as an Apohele asteroid, which always stay inside of Earth's orbit, approaching within 0.116 AU km mi on on of the Sun approximately every 148 days, before leaving for a distance of 0.98 AU, making it a Mercury- and Venus-crossing asteroid. If these early orbital calculations had not turned out to be wrong, the object would still rank today among the inner heliospheric asteroids with the smallest known perihelia. Orbital determination as main-belt asteroid The object remained listed as an inner heliospheric asteroid for several years, until identifications with 2010 MV 87 and 2014 JX 55 and a subsequent improvement of the orbital uncertainty completely overturned previous calculations. 2014 JX 55 is now a secured central main-belt asteroid orbiting the Sun at a distance of 2.2–3.1 AU once every 4 years and 3 months (1,555 days; semi-major axis of 2.63 AU). Its orbit has an eccentricity of 0.17 and an inclination of 32° with respect to the ecliptic. References 30em 2018-06-06 last obs. JPL Small-Body Database Browser: 459883 (2014 JX55) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2459883 Jet Propulsion Laboratory 15 November 2019 459883 (2014 JX55) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=459883 15 November 2019 MPEC 2007-E56 : 2007 EB26 Minor Planet Center 12 March 2007 https://minorplanetcenter.net//iau/mpec/K07/K07E56.html 15 November 2019 (K07E26B) Asteroid (459883) 2014 JX55 AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.0&n=459883 15 November 2019 Asteroid Size Estimator CNEOS NASA/JPL https://cneos.jpl.nasa.gov/tools/ast_size_est.html 15 November 2019 Cranmer Steven R. Predictions for Dusty Mass Loss from Asteroids During Close Encounters with Solar Probe Plus Earth, Moon, and Planets 2016 118 2–3 5 1606.01785 10.1007/s11038-016-9490-5 64651157 List of asteroids with q<0.3075 AU generated by the JPL Small-Body Database Search Engine Retrieved 2013-05-18 External links Atira 2007 EB 26 Asteroids On An Inside Track, Al Grauer Dawn of Small Worlds: Dwarf Planets, Asteroids, Comets – Atira group, p.34, Michael Moltenbrey Asteroid 2007 EB26 Near-Mercury Flyby (0.020 AU) https://web.archive.org/web/20191116014213/http://icalshare.com/calendars/2540/events/1240736 16 November 2019 , icalshare.com Could there be objects orbiting interior to Mercury?, curious.astro.cornell.edu Jerusalem Girls Win the Telescope, weizmann-usa.org, March 2016 Current Discovery Circumstances: Numbered Minor Planets (455001)-(460000) – Minor Planet Center 459883 459883 (459883) 2014 JX 55 459883 459883 20100628