+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 AS5) Classification: Apollo [NEO]          SPK-ID: 54105513 [ 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 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .317915277299877 7.6359e-05   a 1.456930085641032 0.00016693 au q .99374975345793 2.6133e-06 au i .9975607446496425 0.00023901 deg node 168.3112858990054 0.0013908 deg peri 295.0009670457648 0.0013046 deg M 349.0075419118704 0.0017207 deg tp 2459220.113216030134 (2021-Jan-05.61321603) 0.00030186 TDB period 642.3274680003584 1.76 0.1104 0.0003023 d yr n .5604617861364745 9.6325e-05 deg/d Q 1.920110417824135 0.00022 au   Orbit Determination Parameters    # obs. used (total)      70      data-arc span      36 days      first obs. used      2021-01-12      last obs. used      2021-02-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      6      norm. resid. RMS      .32766      source      ORB      producer      Otto Matic      solution date      2021-Feb-18 05:25:45   Additional Information  Earth MOID = .0185967 au   Jupiter MOID = 3.23078 au   T_jup = 4.575  [ 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   .3097 E2021D54 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-13 10:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin