+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 EE) Classification: Apollo [NEO]          SPK-ID: 54128966 [ 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 7 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4653396906678235 0.00031663   a 1.443324864080591 0.00076059 au q .7716885182961505 5.0386e-05 au i 21.96985938499234 0.011965 deg node 162.7763880137634 4.4459e-05 deg peri 285.1614454715203 0.0096556 deg M 345.9085288713722 0.002852 deg tp 2459225.291248645399 (2021-Jan-10.79124865) 0.01458 TDB period 633.3511548139328 1.73 0.50064 0.001371 d yr n .5684050581793942 0.0004493 deg/d Q 2.114961209865032 0.0011145 au   Orbit Determination Parameters    # obs. used (total)      84      data-arc span      4 days      first obs. used      2021-03-03      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      7      norm. resid. RMS      .51918      source      ORB      producer      Otto Matic      solution date      2021-Apr-21 06:22:44   Additional Information  Earth MOID = .0113264 au   Jupiter MOID = 3.30375 au   T_jup = 4.470  [ 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 25.805   .49047 7 autocmod 2.9c [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-22 12:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin