(6382) 1988 EL

Hungaria asteroid October 2019 yes (6382) 1988 EL #D6D6D6 14 March 1988 J. Alu Palomar Obs. (6382) 1988 EL 1983 EC 1 main-belt(inner)Hungaria 4 September 2017 (JD 2458000.5) 0 29.01 yr (10,596 days) 1.9102 AU 1.7388 AU 1.8245 AU 0.0470 2.46 yr (900 days) 349.44° 0.3999 ms / day 18.556° 350.60° 191.91° 4.22 km (calculated)4.931 0.042 km5.311 0.013 km 2.892 0.005 h2.8932 0.0005 h2.894 0.001 h2.895 0.002 h2.898 0.001 h 0.1896 0.06040.254 0.0350.3 (assumed) ES 13.814.08 0.49 (6382) 1988 EL is a stony Hungaria asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 14 March 1988, by American astronomer Jeffrey Alu at the U.S. Palomar Observatory, California. Orbit and classification The presumed E-type asteroid may not be a member of the Hungaria family, which form the innermost dense concentration of asteroids in the Solar System, but an unrelated interloper, which intruded into the Hungaria orbital space, as indicated by a lower albedos from observations by the NEOWISE mission.169 It orbits the Sun at a distance of 1.7–1.9 AU once every 2 years and 6 months (900 days). Its orbit has an eccentricity of 0.05 and an inclination of 19° with respect to the ecliptic. The body's first yet unused observation was made at the Chinese Purple Mountain Observatory in 1983. On 13 April 2042 and on 3 October 2113, the asteroid will pass 0.086 AU km on off and 0.092 AU km on from Mars, respectively. Rotation period Between February 2005 and January 2015, American astronomer Brian D. Warner obtained 5 rotational lightcurves for this asteroid from photometric observations at the CS3–Palmer Divide Station in Colorado. The lightcurves gave a well-defined rotation period of 2.892–2.898 hours with a low brightness variation between 0.06 and 0.15 magnitude (U=2/3-/3/2+/3). Diameter and albedo According to two different data sets from space-based survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 4.9 and 5.3 kilometers in diameter and its surface has an albedo of 0.19 and 0.25, respectively, while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.30 – a compromise value between 0.4 and 0.2, corresponding to the Hungaria asteroids as collisional family and orbital group, respectively – and calculates a smaller diameter of 4.2 kilometers, based on an absolute magnitude of 13.8. Naming As of 2017, 1988 EL remains unnamed. References 30em 2017-03-18 last obs. JPL Small-Body Database Browser: 6382 (1988 EL) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2006382 https://web.archive.org/web/20191216021908/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2006382 dead 16 December 2019 Jet Propulsion Laboratory 26 May 2017 6382 (1988 EL) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=6382 31 August 2016 6 Joseph R. Masiero T. Grav A. K. Mainzer C. R. Nugent J. M. Bauer R. Stevenson S. Sonnett August 2014 Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 6382 31 August 2016 6 A. Mainzer T. Grav J. Masiero E. Hand J. Bauer D. Tholen R. S. McMillan T. Spahr R. M. Cutri E. Wright J. Watkins W. Mo C. Maleszewski November 2011 NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results The Astrophysical Journal 741 2 25 2011ApJ...741...90M 10.1088/0004-637X/741/2/90 1109.6407 Warner, Brian D. September 2005 Asteroid lightcurve analysis at the Palmer Divide Observatory - winter 2004-2005 The Minor Planet Bulletin 32 3 54–58 1052-8091 2005MPBu...32...54W Warner, Brian D. March 2007 Asteroid Lightcurve Analysis at the Palmer Divide Observatory - June-September 2006 The Minor Planet Bulletin 34 1 8–10 1052-8091 2007MPBu...34....8W Warner, Brian D. July 2010 Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2009 December - 2010 March The Minor Planet Bulletin 37 3 112–118 1052-8091 2010MPBu...37..112W Warner, Brian D. April 2012 Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2011 September - December The Minor Planet Bulletin 39 2 69–80 1052-8091 2012MPBu...39...69W Warner, Brian D. July 2015 Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2014 December - 2015 March The Minor Planet Bulletin 42 3 167–172 1052-8091 2015MPBu...42..167W 6 Peter Veres Robert Jedicke Alan Fitzsimmons Larry Denneau Mikael Granvik Bryce Bolin Serge Chastel Richard J. Wainscoat William S. Burgett Kenneth C. Chambers Heather Flewelling Nick Kaiser Eugen A. Magnier Jeff S. Morgan Paul A. Price John L. Tonry Christopher Waters November 2015 Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 External links Lightcurve plot of (6382) 1988 EL, Palmer Divide Observatory, B. D. Warner (2011) 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 Asteroids and comets rotation curves, CdR https://web.archive.org/web/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center 6382 6381 Toyama 6382 6383 Tokushima 006382 Category:Discoveries by Jeff T. Alu 19880314