+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 HN3) Classification: Apollo [NEO]          SPK-ID: 54016668 [ 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 2 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .115105916975158 0.00013472   a 1.01890427654629 5.1549e-05 au q .9016223654845189 9.1764e-05 au i 2.919997849702704 0.0042572 deg node 29.74028585679259 0.0034856 deg peri 277.6828990850391 0.012623 deg M 146.9592096758795 0.0074032 deg tp 2459047.146811066332 (2020-Jul-16.64681107) 0.019358 TDB period 375.6630709833054 1.03 0.028509 7.805e-05 d yr n .9583055344186294 7.2725e-05 deg/d Q 1.13618618760806 5.7483e-05 au   Orbit Determination Parameters    # obs. used (total)      12      data-arc span      3 days      first obs. used      2020-04-19      last obs. used      2020-04-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      6      norm. resid. RMS      .59607      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 22:25:15   Additional Information  Earth MOID = .00198424 au   Jupiter MOID = 3.96362 au   T_jup = 5.985  [ 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 29.4   .23954 E2020-HC9 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-18 06:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin