+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   29253 (1993 DN) Classification: Main-belt Asteroid          SPK-ID: 2029253 [ 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 .07771665557406225 6.6912e-08   a 2.211696018885708 1.6806e-08 AU q 2.039810401151443 1.4525e-07 AU i 4.816067985963794 6.8844e-06 deg node 293.1105263370035 8.2259e-05 deg peri 213.3789864210721 9.7764e-05 deg M 52.83000500655668 4.9981e-05 deg tp 2456224.194958104080 (2012-Oct-23.69495810) 0.0001664 JED period 1201.397105199098 3.29 1.3694e-05 3.749e-08 d yr n .2996511298737815 3.4155e-09 deg/d Q 2.383581636619973 1.8113e-08 AU   Orbit Determination Parameters    # obs. used (total)      789      data-arc span      7371 days (20.18 yr)      first obs. used      1993-02-15      last obs. used      2013-04-22      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .54907      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:51:31   Additional Information  Earth MOID = 1.05362 AU   T_jup = 3.648  [ 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 14.5 mag n/a PDS3 (MPO 16226)   29253 (1993 DN)          Discovered 1993-Feb-21 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: 20011002/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1993 DN = 1998 WK5  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-19 14:21 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin