+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   226322 (2003 EL18) Classification: Main-belt Asteroid          SPK-ID: 2226322 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1614114856163655 1.1695e-07   a 2.461506955199874 2.6992e-08 au q 2.064191460706046 2.7187e-07 au i 3.190752074918239 6.3677e-06 deg node 106.8371349816359 0.00015905 deg peri 89.5980341548333 0.00016191 deg M 138.7655065201691 3.261e-05 deg tp 2458456.775312613886 (2018-Dec-04.27531261) 0.00012179 TDB period 1410.587489410063 3.86 2.3202e-05 6.352e-08 d yr n .2552128121812278 4.1978e-09 deg/d Q 2.858822449693703 3.1349e-08 au   Orbit Determination Parameters    # obs. used (total)      187      data-arc span      8406 days (23.01 yr)      first obs. used      1995-01-08      last obs. used      2018-01-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61849      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 17:27:10   Additional Information  Earth MOID = 1.06568 au   Jupiter MOID = 2.09989 au   T_jup = 3.469  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.3   n/a MPO433483   226322 (2003 EL18)          Discovered 2003-Mar-06 by LONEOS at Anderson Mesa Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-10 00:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin