+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2002 EC3) Classification: Apollo [NEO]          SPK-ID: 3117424 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3462140240325636 3.3054e-08   a 1.288002647544368 1.1086e-09 au q .8420780679734368 4.2395e-08 au i 13.90413344105365 1.4929e-05 deg node 355.3028266585233 1.3117e-05 deg peri 264.2016684074165 1.7574e-05 deg M 257.098158284466 1.2767e-05 deg tp 2459353.113941008497 (2021-May-18.61394101) 1.9025e-05 TDB period 533.9167681268517 1.46 6.8935e-07 1.887e-09 d yr n .6742623972327999 8.7056e-10 deg/d Q 1.733927227115299 1.4925e-09 au   Orbit Determination Parameters    # obs. used (total)      110      data-arc span      6942 days (19.01 yr)      first obs. used      2002-03-09      last obs. used      2021-03-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .56193      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 21:19:52   Additional Information  Earth MOID = .0565255 au   Jupiter MOID = 3.40506 au   T_jup = 4.946  [ 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 21.36   n/a E2021-DA1   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-22 12:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin