+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   39866 (1998 DB24) Classification: Inner Main-belt Asteroid          SPK-ID: 2039866 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO240520 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0559614 n/a   a 1.9621570 n/a AU q 1.8523519 n/a AU i 17.21175 n/a deg node 314.05003 n/a deg peri 298.76993 n/a deg M 93.47691 n/a deg tp 2456139.8240786 (2012-Jul-31.32407860) n/a JED period 1003.9199169 2.75 n/a n/a d yr n 0.35859434 n/a deg/d Q 2.0719621 n/a AU   Orbit Determination Parameters    # obs. used (total)      569      first obs. used      1993-??-??      last obs. used      2012-09-03      # oppositions      10      planetary ephem.      DE403      condition code      0      fit RMS      0.50      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.823  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.6 mag n/a MPO240520   39866 (1998 DB24)          Discovered 1998-Feb-17 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905) Reference: 20020526/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 06:39 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin