+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 WY4) Classification: Apollo [NEO]          SPK-ID: 54095180 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459178.5 (2020-Nov-25.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6055327546603487 0.0010818   a 1.991913491428437 0.0048957 au q .7857446279186627 0.00022371 au i 9.788645061727438 0.012999 deg node 242.1857245950756 0.00078571 deg peri 117.1733813452086 0.00087047 deg M 14.70339227906577 0.062567 deg tp 2459136.560892897519 (2020-Oct-14.06089290) 0.023856 TDB period 1026.843212119786 2.81 3.7857 0.01036 d yr n .3505890634041648 0.0012925 deg/d Q 3.198082354938212 0.0078602 au   Orbit Determination Parameters    # obs. used (total)      17      data-arc span      1 day      first obs. used      2020-11-25      last obs. used      2020-11-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      8      norm. resid. RMS      .58598      source      ORB      producer      Otto Matic      solution date      2020-Nov-26 08:12:03   Additional Information  Earth MOID = .000413418 au   Jupiter MOID = 2.37214 au   T_jup = 3.583  [ 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 28.9   .40046 E2020-WH5 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-02 18:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin