+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2010 EL139) Classification: TransNeptunian Object          SPK-ID: 3515020 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 5 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06534408686669829 2.7421e-05   a 39.46884951108026 0.0014717 au q 36.88979358009959 0.00054844 au i 23.01254437681562 4.8662e-05 deg node 331.2323326234317 0.00021546 deg peri 212.19597165 0.020799 deg M 31.95450018000646 0.018766 deg tp 2450961.358817141927 (1998-May-27.85881714) 4.516 TDB period 90569.11575915382 247.96 5.0658 0.01387 d yr n .003974864908224686 2.2232e-07 deg/d Q 42.04790544206093 0.0015679 au   Orbit Determination Parameters    # obs. used (total)      167      data-arc span      3719 days (10.18 yr)      first obs. used      2010-03-12      last obs. used      2020-05-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      3      norm. resid. RMS      .39287      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 14:06:51   Additional Information  Earth MOID = 35.9148 au   Jupiter MOID = 31.5697 au   T_jup = 5.191  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 5.6   n/a MPO456661   rotation period rot_per 6.32 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong. Published Reference List: [Benecchi, S.D.; Sheppard, S.S. (2013) Astron. J. 145, A124.] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2021-Jan-21 16:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin