+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   469900 (2005 WE79) Classification: Main-belt Asteroid          SPK-ID: 2469900 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1510548846082056 6.573e-08   a 2.687450141646967 3.2163e-08 au q 2.281497670610178 1.708e-07 au i 12.02715413878884 9.2009e-06 deg node 261.0594675567212 3.0426e-05 deg peri 239.8219601765894 4.5272e-05 deg M 56.68798615952633 3.2107e-05 deg tp 2458747.105269732858 (2019-Sep-20.60526973) 0.00014161 TDB period 1609.196393737855 4.41 2.8888e-05 7.909e-08 d yr n .2237141478820922 4.016e-09 deg/d Q 3.093402612683755 3.7021e-08 au   Orbit Determination Parameters    # obs. used (total)      113      data-arc span      5264 days (14.41 yr)      first obs. used      2005-11-25      last obs. used      2020-04-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53124      source      ORB      producer      Otto Matic      solution date      2020-May-22 04:48:47   Additional Information  Earth MOID = 1.32187 au   Jupiter MOID = 2.09844 au   T_jup = 3.326  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.5   n/a MPO460742   469900 (2005 WE79)          Discovered 2005-Nov-25 by Spacewatch at Kitt Peak Reference: Last Updated: 2016-08-22 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-10 07:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin