+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   46636 (1994 WD3) Classification: Main-belt Asteroid          SPK-ID: 2046636 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1690793044274402 1.3286e-07   a 2.629967750879612 3.0472e-08 AU q 2.185294632894288 3.4344e-07 AU i 13.5864296498458 1.1712e-05 deg node 72.7014556024868 3.7673e-05 deg peri 317.8399492922713 4.9442e-05 deg M 135.2100723967226 2.5594e-05 deg tp 2455815.399315582843 (2011-Sep-10.89931558) 0.00011167 JED period 1557.84434292842 4.27 2.7075e-05 7.413e-08 d yr n .2310885562053495 4.0163e-09 deg/d Q 3.074640868864936 3.5625e-08 AU   Orbit Determination Parameters    # obs. used (total)      378      data-arc span      6711 days (18.37 yr)      first obs. used      1994-11-27      last obs. used      2013-04-12      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .67561      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 16:13:57   Additional Information  Earth MOID = 1.21136 AU   T_jup = 3.341  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.544 mag .53372 1 autocmod 2.5c 46636 (1994 WD3)          Discovered 1994-Nov-28 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: 20020921/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1994 WD3 = 2001 KX20  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-26 02:07 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin