+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 WN) Classification: Apollo [NEO]          SPK-ID: 54088812 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4217186077747129 0.00033765   a 1.422107077908795 0.00067284 au q .822378060906533 9.1091e-05 au i 6.259607834856355 0.004357 deg node 62.40101816658505 0.0004848 deg peri 63.67133029623155 0.00055698 deg M 230.5638864416603 0.097592 deg tp 2459223.215189402362 (2021-Jan-08.71518940) 0.009863 TDB period 619.4366161087855 1.70 0.43961 0.001204 d yr n .5811732639595474 0.00041246 deg/d Q 2.021836094911058 0.0009566 au   Orbit Determination Parameters    # obs. used (total)      51      data-arc span      6 days      first obs. used      2020-11-16      last obs. used      2020-11-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .4451      source      ORB      producer      Otto Matic      solution date      2020-Nov-26 05:21:13   Additional Information  Earth MOID = .000551641 au   Jupiter MOID = 3.06811 au   T_jup = 4.601  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 27.701   .91282 8 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-23 06:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin