+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   23730 Suncar (1998 HX89) Classification: Main-belt Asteroid          SPK-ID: 2023730 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO236514 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1367463 n/a   a 2.2279110 n/a AU q 1.9232524 n/a AU i 3.87712 n/a deg node 16.15733 n/a deg peri 44.67795 n/a deg M 329.69309 n/a deg tp 2456502.7549498 (2013-Jul-29.25494980) n/a JED period 1214.6332946 3.33 n/a n/a d yr n 0.29638575 n/a deg/d Q 2.5325696 n/a AU   Orbit Determination Parameters    # obs. used (total)      537      first obs. used      1991-??-??      last obs. used      2012-08-11      # oppositions      12      planetary ephem.      DE403      condition code      0      fit RMS      0.55      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.629  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.9 mag n/a PDS3 (MPO 11179)   23730 Suncar           Discovered 1998 Apr. 21 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro. Jonathan Kelvin Suncar (b. 1990) was awarded second place in the 2007 Intel International Science and Engineering Fair for his environmental management team project. He attends the Uniondale High School, Uniondale, 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  1998 HX89 = 1994 AG16  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 07:23 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin