+ View the NASA Portal + Near-Earth Object (NEO) Project Search JPL JPL Small-Body Database Browser Search: [ help ]   23306 Adamfields (2001 AC20) Classification: Main-belt Asteroid          SPK-ID: 2023306 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2455200.5 (2010-Jan-04.0) TDB Reference: MPO50349 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1214695 n/a   a 2.3432268 n/a AU q 2.0585962 n/a AU i 6.79817 n/a deg node 165.63198 n/a deg peri 211.60630 n/a deg M 258.74807 n/a deg tp 2455568.9857689 (2011-Jan-07.48576890) n/a JED period 1310.1466491 3.59 n/a n/a d yr n 0.27477840 n/a deg/d Q 2.6278574 n/a AU   Orbit Determination Parameters    # obs. used (total)      172      first obs. used      1978-??-??      last obs. used      2003-09-02      # oppositions      9      planetary ephem.      DE403      quality code      1      fit RMS      0.68      data source      MPC:mpn      producer      MPC   Additional Information  T_jup = 3.543  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.3 mag n/a PDS3 (MPO 10270)   23306 Adamfields           Discovered 2001 Jan. 2 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro. Adam Chaplin Fields (b. 1990) was awarded first place in the 2007 Intel International Science and Engineering Fair for his medicine and health sciences team project. He attends the Jericho High School, Jericho, New York, U.S.A. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070828/MPCPages.arc Last Updated: 2007-08-30 Alternate Designations  2001 AC20 = 1978 VA13 = 1985 RX5 = 1996 VF40 = 1998 FY132  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2009-Nov-23 20:59 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin