(185851) 2000 DP107

Near-Earth asteroid October 2026 yes (185851) 2000 DP 107 #FFC2E0 2000 DP107 Arecibo 2000.gif Composite of radar images by the Arecibo Observatory from September to October 2000 29 February 2000 LINEAR Lincoln Lab's ETS (185851) 2000 DP 107 NEOPHAApollo 4 September 2017 (JD 2458000.5) 0 16.82 yr (6,143 days) 1.8794 AU 0.8511 AU 1.3652 AU 0.3766 1.60 yr (583 days) 255.78° 0.6179 ms / day 8.6718° 358.70° 289.74° 0.0150 AU5.8 LD 1 0.860 km (taken)0.863 0.043 km1.0 0.1 km 2.769 0.005 h2.774 0.001 h2.77447 0.00005 h2.7745 0.0007 h2.7754 0.0002 h2.7754 h 0.111 0.0360.15 (derived) MC 18.018.0 0.2 (R)18.02 0.218.03 0.118.2 (185851) 2000 DP 107 is a sub-kilometer sized asteroid, classified as a potentially hazardous asteroid and near-Earth object of the Apollo group that is notable because it provided evidence for binary asteroids in the near-Earth population. The PROCYON probe developed by JAXA and the University of Tokyo was intended to flyby this asteroid before its ion thruster failed and could not be restarted. Discovery The asteroid was discovered on 29 February 2000, by the Lincoln Near-Earth Asteroid Research (LINEAR) program at Lincoln Laboratory's Experimental Test Site, near Socorro, New Mexico. The binary nature of this asteroid was suggested from radar observations taken with the Goldstone radar antenna on 22 and 23 September 2000, based on an observing proposal by J.-L. Margot and observations by S. J. Ostro and colleagues.IAUC 7496: 2000 S1; Confirming observations were obtained with the Arecibo telescope from 30 September to 7 October 2000.IAUC 7503: 2000dp; Sats of minor planets Orbit 2000 DP 107 orbits the Sun at a distance of 0.9–1.9 AU once every 19 months (583 days). Its orbit has an eccentricity of 0.38 and an inclination of 9° with respect to the ecliptic. The body's observation arc begins with its official discovery observation, as no precoveries were taken, and no prior identifications were made. Binary system The 800-meter-diameter primary and the 300-meter-diameter secondary orbit each other with a separation of 2.6 kilometers and a period of 1.76 days. The primary is spheroidal and is spinning at a rate near the breakup point for strengthless bodies. These two features were observed in multiple binary systems, suggesting that near-Earth asteroid binaries form by a mechanism involving spin-up and mass shedding. Currently the most generally accepted spin-up mechanism is the YORP effect. Physical characteristics The asteroid is characterized as both a carbonaceous C-type and metallic M-type asteroid. The density of the primary was calculated using the orbital elements of the binary system, the primary-to-secondary mass ratio, and estimates of the primary size. The primary has a low density of 1.7 g/cm3, which may indicate a "rubble pile" structure containing rocks and voids. Numbering and naming This minor planet was numbered by the Minor Planet Center on 20 May 2008. As of 2018, it has not been named. See also List of minor planets and comets visited by spacecraft References 30em 2016-12-24 last obs. JPL Small-Body Database Browser: 185851 (2000 DP107) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2185851 https://web.archive.org/web/20170323053654/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2185851 dead 23 March 2017 Jet Propulsion Laboratory 1 June 2017 185851 (2000 DP107) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=185851 22 March 2017 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 24 February 2018 6 J. L. Margot M. C. Nolan L. A. M. Benner S. J. Ostro R. F. Jurgens J. D. Giorgini M. A. Slade D. B. Campbell 8768432 May 2002 Binary Asteroids in the Near-Earth Object Population Science 296 5572 1445–1448 2002Sci...296.1445M 10.1126/science.1072094 11951001 185851 22 March 2017 6 F. Marchis J. E. Enriquez J. P. Emery M. Mueller M. Baek J. Pollock M. Assafin R. Vieira Martins J. Berthier F. Vachier D. P. Cruikshank L. F. Lim D. E. Reichart K. M. Ivarsen J. B. Haislip A. P. LaCluyze November 2012 Multiple asteroid systems: Dimensions and thermal properties from Spitzer Space Telescope and ground-based observations Icarus 221 2 1130–1161 2012Icar..221.1130M 10.1016/j.icarus.2012.09.013 1604.05384 161887 6 S. P. Naidu J. L. Margot P. A. Taylor M. C. Nolan M. W. Busch L. A. M. Benner M. Brozovic J. D. Giorgini J. S. Jao C. Magri August 2015 Radar Imaging and Characterization of the Binary Near-Earth Asteroid (185851) 2000 DP107 The Astronomical Journal 150 2 12 2015AJ....150...54N 10.1088/0004-6256/150/2/54 1503.01743 85535751 P. Pravec P. Kusnirak M. Hicks B. Holliday B. Warner October 2000 2000 DP_107 IAU Circ. 7504 3 2000IAUC.7504....3P B. Yang J. Zhu J. Gao H. T. Zhang X. Z. Zheng May 2003 Observations of 2000 DP 107 in NAOC: rotation period and reflectance spectrum Planetary and Space Science 51 6 411–414 2003P&SS...51..411Y 10.1016/S0032-0633(03)00024-2 6 P. Pravec P. Scheirich P. Kusnirák L. Sarounová S. Mottola G. Hahn P. Brown G. Esquerdo N. Kaiser Z. Krzeminski D. P. Pray B. D. Warner A. W. Harris M. C. Nolan E. S. Howell L. A. M. Benner J.-L. Margot A. Galád W. Holliday M. D. Hicks Yu. N. Krugly D. Tholen R. Whiteley F. Marchis D. R. DeGraff A. Grauer S. Larson F. P. Velichko W. R. Cooney R. Stephens J. Zhu K. Kirsch R. Dyvig L. Snyder V. Reddy S. Moore S. Gajdos J. Világi G. Masi D. Higgins G. Funkhouser B. Knight S. Slivan R. Behrend M. Grenon G. Burki R. Roy C. Demeautis D. Matter N. Waelchli Y. Revaz A. Klotz M. Rieugné P. Thierry V. Cotrez L. Brunetto G. Kober March 2006 Photometric survey of binary near-Earth asteroids Icarus 181 1 63–93 2006Icar..181...63P 10.1016/j.icarus.2005.10.014 Brian D. Warner Robert D. Stephens April 2009 Lightcurve Analysis of Two Binary Asteroids: (76818) 2000 RG79 and (185851) 2000 DP107 The Minor Planet Bulletin 36 2 62–63 1052-8091 2009MPBu...36...62W Brian A. Skiff Edward Bowell Bruce W. Koehn Jason J. Sanborn Kyle P. McLelland Brian D. Warner July 2012 Lowell Observatory Near-Earth Asteroid Photometric Survey (NEAPS) - 2008 May through 2008 December The Minor Planet Bulletin 39 3 111–130 1052-8091 2012MPBu...39..111S Polishook, David July 2012 Lightcurves and Spin Periods of Near-Earth Asteroids, The Wise Observatory, 2005 - 2010 The Minor Planet Bulletin 39 3 187–192 1052-8091 2012MPBu...39..187P Petr Pravec Alan W. Harris Peter Kusnirák Adrián Galád Kamil Hornoch September 2012 Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations Icarus 221 1 365–387 2012Icar..221..365P 10.1016/j.icarus.2012.07.026 C. L. Dandy A. Fitzsimmons S. J. Collander-Brown June 2003 Optical colors of 56 near-Earth objects: trends with size and orbit Icarus 163 2 363–373 2003Icar..163..363D 10.1016/S0019-1035(03)00087-3 External links Lightcurve plot of (185851) 2000 DP107, Palmer Divide Observatory, B. D. Warner (2008) 2000 DP107 Arecibo Planetary Science website Binary Asteroids in the Near-Earth Object Population, Margot et al., Science, 2002 (subscription) Asteroids with Satellites, Robert Johnston, johnstonsarchive.net 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 185851 185851 2000DP107 185851 185851 (185851) 2000 DP 107 185851 185851 185851 185851 185851 20000229