+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   392698 (2011 WP140) Classification: Main-belt Asteroid          SPK-ID: 2392698 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1854488358001137 6.3133e-08   a 2.777461449572515 3.5389e-08 au q 2.262384457269596 1.6576e-07 au i 8.930359293228834 7.0569e-06 deg node 67.10156527595007 3.5493e-05 deg peri 191.8808331291856 3.9329e-05 deg M 86.27399440921282 1.8335e-05 deg tp 2458595.320101138244 (2019-Apr-21.82010114) 8.3003e-05 TDB period 1690.715314494075 4.63 3.2313e-05 8.847e-08 d yr n .2129276270900317 4.0695e-09 deg/d Q 3.292538441875434 4.1952e-08 au   Orbit Determination Parameters    # obs. used (total)      193      data-arc span      6087 days (16.67 yr)      first obs. used      2004-03-18      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60809      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:12:22   Additional Information  Earth MOID = 1.24816 au   Jupiter MOID = 1.77346 au   T_jup = 3.292  [ hide covariance matrix ] Orbital Elements at Epoch 2457534.5 (2016-May-26.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1850146493168416 6.2959e-08   q 2.264579636529519 1.652e-07 au tp 2456905.154913634152 (2014-Sep-04.65491363) 7.8421e-05 TDB node 67.10854901174801 3.5488e-05 deg peri 192.2058513206701 3.9384e-05 deg i 8.930192746844856 7.0582e-06 deg   Orbit Determination Parameters    # obs. used (total)      193      data-arc span      6087 days (16.67 yr)      first obs. used      2004-03-18      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60809      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:12:22   Additional Information  Jupiter MOID = 1.77346 au   T_jup = 3.292  Orbit Covariance (6×6)   e q tp node peri i e 3.963802478964116E-15 -1.026732621456625E-14 -2.419193524385908E-12 -1.343252990863715E-14 -4.583834630324361E-13 3.118093164628275E-15 q -1.026732621456625E-14 2.729076467607316E-14 6.627697467550651E-12 3.31728891123179E-14 1.323357675088302E-12 -6.998755927142645E-15 tp -2.419193524385908E-12 6.627697467550651E-12 6.149926420653845E-9 -2.5817155500442E-12 1.359675133847867E-9 7.10336790353055E-13 node -1.343252990863715E-14 3.31728891123179E-14 -2.5817155500442E-12 1.259399025187615E-9 -1.244636544369185E-9 -1.045977417842756E-10 peri -4.583834630324361E-13 1.323357675088302E-12 1.359675133847867E-9 -1.244636544369185E-9 1.551137246361596E-9 1.037306199258622E-10 i 3.118093164628275E-15 -6.998755927142645E-15 7.10336790353055E-13 -1.045977417842756E-10 1.037306199258622E-10 4.981881127700875E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.3   n/a MPO437608   392698 (2011 WP140)          Discovered 2011-Oct-20 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2014-04-17 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 10:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin