+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   379039 (2008 WA15) Classification: Main-belt Asteroid          SPK-ID: 2379039 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08041849476895338 6.876e-08   a 2.867996166918306 3.1115e-08 au q 2.637356232171608 1.9837e-07 au i .8574987271784501 6.1492e-06 deg node 294.2521424386047 0.0004562 deg peri 113.6408289947211 0.00045893 deg M 129.0999329285261 4.8684e-05 deg tp 2458364.305672364703 (2018-Sep-02.80567236) 0.000237 TDB period 1774.051719108988 4.86 2.887e-05 7.904e-08 d yr n .2029253127867146 3.3023e-09 deg/d Q 3.098636101665004 3.3617e-08 au   Orbit Determination Parameters    # obs. used (total)      160      data-arc span      6030 days (16.51 yr)      first obs. used      2003-10-16      last obs. used      2020-04-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55041      source      ORB      producer      Otto Matic      solution date      2020-May-22 00:27:26   Additional Information  Earth MOID = 1.64729 au   Jupiter MOID = 2.19722 au   T_jup = 3.294  [ 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 16.6   n/a MPO427883   379039 (2008 WA15)          Discovered 2008-Nov-17 by Spacewatch at Kitt Peak Reference: Last Updated: 2013-11-20 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Nov-28 00:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin