+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .42026770792526 0.00033952   a 1.416017985946231 0.00067644 au q .8209113526116655 8.8637e-05 au i 6.278129717894304 0.0043341 deg node 62.3771691052362 0.00053509 deg peri 64.06126145723766 0.0013839 deg M 346.5884699922181 0.015724 deg tp 2459223.428593052437 (2021-Jan-08.92859305) 0.010453 TDB period 615.4624784858805 1.69 0.44101 0.001207 d yr n .5849259907535677 0.00041913 deg/d Q 2.011124619280796 0.00096072 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.      DE441      SB-pert. ephem.      SB441-N16      condition code      7      norm. resid. RMS      .4451      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 23:18:26   Additional Information  Earth MOID = .000779323 au   Jupiter MOID = 3.07695 au   T_jup = 4.616  [ 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 27.4   .91282 E2021-CC3 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-May-08 20:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin