+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 AD1) Classification: Apollo [NEO]          SPK-ID: 3973543 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1439175192013969 6.4555e-05   a 1.045147693076192 3.4783e-05 au q .8947326298896033 3.7697e-05 au i 3.847525571296302 0.0024081 deg node 98.55065709250253 0.001668 deg peri 96.62686812759566 0.0030987 deg M 67.39508897236114 0.022322 deg tp 2459323.438148025965 (2021-Apr-18.93814803) 0.020552 TDB period 390.2697824382881 1.07 0.019483 5.334e-05 d yr n .922438826164886 4.6049e-05 deg/d Q 1.19556275626278 3.9789e-05 au   Orbit Determination Parameters    # obs. used (total)      49      data-arc span      21 days      first obs. used      2019-12-28      last obs. used      2020-01-18      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      6      norm. resid. RMS      .39657      source      ORB      producer      Otto Matic      solution date      2021-Jun-19 06:20:27   Additional Information  Earth MOID = .00431546 au   Jupiter MOID = 3.75872 au   T_jup = 5.864  [ 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 26.3   .18937 E2020A92 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jun-25 02:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin