+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 WS1) Classification: Apollo [NEO]          SPK-ID: 54091636 [ 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 3 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5347830714963584 0.00024468   a 2.07126255393155 0.0010813 au q .9635864034646442 3.8346e-06 au i 18.32457638511865 0.0052507 deg node 58.45070257991265 3.1987e-05 deg peri 24.9376788168092 0.0012914 deg M 296.1065007856879 0.050896 deg tp 2459193.743693730822 (2020-Dec-10.24369373) 0.0026187 TDB period 1088.807634556861 2.98 0.8526 0.002334 d yr n .3306369174629438 0.00025891 deg/d Q 3.178938704398456 0.0016595 au   Orbit Determination Parameters    # obs. used (total)      61      data-arc span      2 days      first obs. used      2020-11-19      last obs. used      2020-11-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .37344      source      ORB      producer      Otto Matic      solution date      2020-Nov-22 05:20:02   Additional Information  Earth MOID = .00775694 au   Jupiter MOID = 2.1798 au   T_jup = 3.524  [ 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 27.147   .67671 3 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-23 05:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin