+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   23212 Arkajitdey (2000 UR39) Classification: Main-belt Asteroid          SPK-ID: 2023212 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250439 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0539730 n/a   a 2.8706489 n/a AU q 2.7157114 n/a AU i 2.33387 n/a deg node 188.91418 n/a deg peri 203.57259 n/a deg M 212.11950 n/a deg tp 2457130.2547770 (2015-Apr-17.75477700) n/a JED period 1776.5136019 4.86 n/a n/a d yr n 0.20264410 n/a deg/d Q 3.0255864 n/a AU   Orbit Determination Parameters    # obs. used (total)      588      first obs. used      1996-??-??      last obs. used      2012-06-09      # oppositions      13      planetary ephem.      DE403      condition code      0      fit RMS      0.51      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.295  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.9 mag n/a PDS3 (MPO 10243)   23212 Arkajitdey           Discovered 2000 Oct. 24 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro. Arkajit Dey (b. 1989) was awarded second place in the 2007 Intel International Science and Engineering Fair for his mathematical sciences project. He attends the Harker School, San Jose, California, 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  2000 UR39 = 1998 HC89  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 12:37 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin