+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 AY6) Classification: Apollo [NEO]          SPK-ID: 54105995 [ 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 4 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4136149664750405 0.00047902   a 1.700769283807491 0.0014142 au q .9973056535036771 1.4598e-05 au i 7.840686906239704 0.0071099 deg node 296.21159589678 0.00022899 deg peri 172.9764130521781 0.00081156 deg M 349.2827973139734 0.012924 deg tp 2459224.618232424391 (2021-Jan-10.11823242) 0.0011952 TDB period 810.1520450015549 2.22 1.0105 0.002767 d yr n .4443610334888546 0.00055425 deg/d Q 2.404232914111306 0.0019992 au   Orbit Determination Parameters    # obs. used (total)      27      data-arc span      3 days      first obs. used      2021-01-14      last obs. used      2021-01-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .65423      source      ORB      producer      Otto Matic      solution date      2021-Jan-21 05:19:42   Additional Information  Earth MOID = .0154109 au   Jupiter MOID = 2.74023 au   T_jup = 4.091  [ 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 28.15   .48671 E2021-BA4 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-12 04:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin