+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 AW5) Classification: Apollo [NEO]          SPK-ID: 54105518 [ 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 5 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2763644762516457 0.00060319   a 1.234403603920152 0.00078287 au q .8932582984396155 0.00017807 au i 1.944555562076932 0.0042839 deg node 88.36913967421687 0.0065438 deg peri 93.16999790713786 0.0020429 deg M 299.1500528193686 0.066402 deg tp 2459285.172406507672 (2021-Mar-11.67240651) 0.011848 TDB period 500.93825475767 1.37 0.47655 0.001305 d yr n .7186514437276322 0.00068366 deg/d Q 1.575548909400689 0.00099923 au   Orbit Determination Parameters    # obs. used (total)      28      data-arc span      11 days      first obs. used      2021-01-12      last obs. used      2021-01-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .27558      source      ORB      producer      Otto Matic      solution date      2021-Jan-23 05:26:57   Additional Information  Earth MOID = .0135028 au   Jupiter MOID = 3.38127 au   T_jup = 5.151  [ 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 26.54   .34548 E2021-BC1 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-13 10:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin