+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 AD5) Classification: Apollo [NEO]          SPK-ID: 54105486 [ 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 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .101171461115297 0.00038028   a 1.049780661321216 0.00033475 au q .9435728179647653 9.8858e-05 au i 9.692634963738275 0.028025 deg node 290.6610840155746 0.00080391 deg peri 114.7572947263312 0.038655 deg M 32.56283797545996 0.059893 deg tp 2459164.964205762252 (2020-Nov-11.46420576) 0.048787 TDB period 392.8676589930578 1.08 0.18792 0.0005145 d yr n .9163391074813858 0.0004383 deg/d Q 1.155988504677666 0.00036862 au   Orbit Determination Parameters    # obs. used (total)      20      data-arc span      1 day      first obs. used      2021-01-11      last obs. used      2021-01-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .56435      source      ORB      producer      Otto Matic      solution date      2021-Jan-12 06:44:51   Additional Information  Earth MOID = .0119111 au   Jupiter MOID = 4.00269 au   T_jup = 5.838  [ 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 28.30   .31798 E2021-AG0 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-06 00:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin